Area of a Circle

In this video, it is shown how to calculate the area of a circle where the diameter is given. The formula for calculating the area of a circle is pi multiplied by square of radius. Radius is actually half of the diameter. In this video, the diameter is given as 10.6 meters. He ...more

This video shows how to find the area of a circle using a formula. The formula for area of circle is pie multiplied by square of radius. Pie is actually an infinite number but for the sake of convenience we consider the value of pie as 3.14. So we multiply the square of radius ...more

In this tutorial, we learn how to find the area of a circle. First, you will need to know the formula for finding the area of a circle, which is Area=Pi(r)squared. Now, find the radius of the circle in question. After this, fill in the radius to the equation and start to do th ...more

In this video the instructor shows how to calculate the area of a circle using squares. She starts with the formula of the circumference which she says is circumference C = Pi * D, where D is the diameter of the circle. Now she says that you can turn the shape of circle into a ...more

In this video lesson, you learn how to find the area of a circle. The video starts with an explanation of the area's formula. This formula can then be used to find the area of any circle, given its radius, which is half the diameter of the circle. There are many applications f ...more

In this tutorial, we learn how to find the area of a circle. The line from the middle to the edge of the circle is called the radius. Find what this is in your equation, then multiply (3.14 X radius x radius). This will always work out the area of a circle for you. So, do this ...more

This video describes how to find the area of a circle given a radius of 4cm. The video begins by describing the formulas needed to find the area of the circle. The narrator cautions the viewer on a few common mistakes that people frequently make while using these formulas, suc ...more

In this video tutorial, viewers learn how to solve for the circumference and area of a circle. The circumference is the distance around a closed curve. The formula for circumference is C= pi x d. The diameter is two times the radius (d= 2r or r= d/2). The value of pi is approx ...more

This video from Your Teacher is one of a range of math solutions. (which is the measurement from the center to the edge when drawn in a straight line) and also the area of the circle, is the amount of total space within its perimeter. The circumference of this circle is 20 pi. ...more

This video is about how-to calculate the area of a circle. It is in a very simple, and in an elementary school point of view. Of course, it can be done with either metric or imperial measures, as explained in the video. Only thing is that, it truly explains the simplicity of t ...more

Learn how to find the area of circle by activity method. Requirements: A circle cut out, a pair of scissors, sketch pen, and a ruler. Take a circle of the radius. Fold the circle along itself. Fold it again. Fold yet again. And again. Now unfold and observe the crease. Numbe ...more

This video is about deriving the area of a circle of radius 'r' using polar co-ordinate. First, we draw a circle and its radius 'r'. Then draw another radius close to it, so that it forms a small triangle-like figure. To find the area of the complete circle, divide the circle ...more

Bill, Bobbie, and Drew present information on a circle. The presentation defines the key points of a circle. The area of a circle is Pi (3.14) x radius x radius. The diameter of a circle is the line drawn from one end to another inside the circle. The radius is the center of t ...more

Doina Popovici's video explains how to calculate the area of a ring. She takes us really slow, down to all the steps of this process. It's very important that she explains every math formula and operation so you cannot get lost into this solving. The video uses nice pictures a ...more

PapaPodcast's Peter shows us how to calculate the Area and Circumference of a Circle. Area is the amount of square units used to cover a circle. Circumference is the units around the edge of a circle. To calculate these two units we must find a radius and diameter. Diameter is ...more

Need help figuring out how to work with circles in basic geometry? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in t ...more

Learn how to conceal under eye circles with Martha Stewart's REAL SIMPLE. The thin skin under the eyes is prone to dark circles?especially when you don't get enough sleep. Here's how to achieve a bright-eyed look. All it takes is a few cosmetics to cover up those dark circles. ...more

Watch this fine art video tutorial to learn how to master drawing a fearful eye in two minutes. In two minutes you will be able to draw the expression of fear in the eye. "Notice that a fearful eye features a distinct gap between the iris and the top eyelid. This separation i ...more

Let's face it ladies: All of us come with some baggage. While some of us have emotional baggage, we all have the physical kind: undereye baggage. This sagging and drooping of your undereye area is further aggravated by fine lines, wrinkles, and purple or blue circles. Ah, the ...more

This how to video will show you how to get the Obedience School trophy in God of War 3. This is useful if you want to get all the trophies in God of War 3. In order to do this, you will have to hit circle, or b, to pick up a dog and kick it. There is a chamber in Poseidon's ar ...more

In this Home & Garden video tutorial you will learn how to identify pecan weevil problems. John White presents this video along with Carol Sutherland, extension entomologist. After pecan is infected with pecan weevil, it has the potential of spreading in the entire area. The i ...more

In order to create 3D lettered signs in lights, you will need to first create an object. Open Illustrator. Type your letters on the page. Adjust the font to the style you would like. Click on "effect". Then, click on "3D". This will allow you to rotate the image for the angle ...more

This how-to video is about how to add a color tint to photos in Photoshop. This can really add some nice effect to the pictures, To do this first select the picture then go to "layers" then choose "adjustment layer" option right click on it and choose "hue and saturation" opt ...more

Watch this fine art video tutorial to learn how to master drawing an angry human eye in two minutes. "Try to notice that the shape around an angry eye is much more compressed than a calm eye. When a person is enraged, the muscles around the eye tighten and pull the eyelids in ...more

This video shows how to make a cute vintage looking jewelery box. A cardboard cheese box forms the body of the jewelery box. Other items you will need include mod podge, white glue gesso, masking tape, ribbons, a mirror from a compact, some fabric, and some faux pearls and flo ...more

You will be shown how to use rice water to nourish and fortify your skin. You will be using just the rice water. * Wash your face. * Gather organic jasmine rice and a cotton cleansing pad, a jar of pure water, a paper towel, an empty clean spice jar and a bowl. * Fill the bowl ...more

Pixel Perfect is the "perfect" show to help you with your Photoshop skills. Be amazed and learn as master digital artist Bert Monroy takes a stylus and a digital pad and treats it as Monet and Picasso do with oil and canvas. Learn the tips and tricks you need to whip those dig ...more

Watch this fine art video tutorial to learn how to master drawing a human eye in two minutes. "A helpful trick with observational drawing is to see what you are drawing, as shapes. The basic shape of the human eye is similar to an almond shape. But this is only one of the sev ...more

First of all cut of the top and the bottom of the cylinder to get two circles. Now take a scissors and cut of the cylinder into two halves from the top to the bottom as shown. Now you get a rectangle shape. You can easily measure the length of the cylinder but to measure the b ...more

This video shows how to draw a picture of the Earth. First draw a rough circle in black. Add blue sea areas inside the circle but leave a white space in the shape of Africa and a white space for Europe above it. On the left leave a white space for a part of America. Fill all t ...more

This video both shows the viewer how to calculate the volume and surface area of a cylinder. It also explains what these different numbers mean. The volume is the amount of ‘matter’ that the cylinder can hold. The surface area is literally the area of the cylinders curved face ...more

Math always seems hardest until someone shows you how to do the problem and then it all seems just so simple. This video will walk you through the process of finding the surface area of a cone when you also have to derive the slant height. Use this example to help with your ot ...more

Steps involved in calculating the lateral surface and total area are: Consider a cylinder with radius r, height h. Then to find lateral area we need the formula 2*pi*r*h, circumference - 2*pi*r, total area 2*pi*(r+h) and area of circle (pi^2)*r. Therefore by using only the ra ...more

This video helps you to draw a boat. First draw the base with double lines. Then draw a cabin and a wheel. Next draw small circles on the base. Now paint the entire lines with black. Next draw spokes on the wheel. Shade the base of the boat with a lighter brown color and over- ...more

In this how to video, you will learn how to draw V for Vendetta. First, start out with the legs of the character. Draw the outline as if the character is squatting. Next, draw the outline of the cape and the hands. Next, draw the face of the character. Note that he wears a hat ...more

The user demonstrates how to draw Disney's Eeyore in this video. The first step is to draw a circle about the size of a 50 cent piece for his head and add construction lines to it, including one across the lower part of the circle to use as a reference. The user also suggests ...more

This video walks you through the steps of solving a problem that requires us to figure out the area of an equilateral triangle inscribed in a circle. This excellent video shows you a clean blackboard, with the instructors voice showing exactly what to do. Don't fret, any quest ...more

This technique is very similar to the one used for removing dark circles beneath the eyes of of people in your pictures. This shows you a simple technique where you can reduce the amount of gray in a particular area of your photo to get rid of the dark circle look.

The card stock used is a celery card stock that is 2 by 7 and 3/4. You then fold the ends of the card 2 inches into the card on both sides. So now it should look like two 2 inch squares on the ends that are folded and then a rectangle in the middle. The designer paper used mea ...more

Tone and sculpt your body with a few calisthenics exercises and tips from the experts. In this fitness how to video SELF Magazine offers several simple calisthenics workouts to help tone your body. Watch and learn how simple it is to do a classic releve, side-lying passe, pelv ...more

In this video the tutor shows how to find the volume of a cylinder. He relates the cylinder to real world examples of cans etc. Now he states the formula of the volume of the cylinder as the area of the base circle multiplied by the height of the cylinder. So the formula turns ...more

In this tutorial, we learn how to draw a sphere in 3D. First, draw a circle and a square around it with a light pencil. From here, you will use the side of the pencil to shade in the sides of the circle. Then, draw a half circle next to the circle to make it look like it's sha ...more

In this tutorial the instructor shows how to compute the Surface Area of a Cone. He explains that you need to find the individual surfaces areas first. Hence the bottom part of the cone which is circular can be calculated as Pi*r*r, where r is the radius of the base circle. No ...more

The video describes the "Calculation of the surface area of the cone without a slant". If the base circle diameter (d) and the height of the cone (h) are known, then the following procedure can be used for finding out the surface area oh the cone: Surface area of the cone is ...more

Sometimes massages may not be recommended for an ankle sprain. But did you know know that ankle sprains can be relieved through massage. Get expert tips and advice on massage and other treatments in this diet and health how-to video. Take Action Avoid if experiencing extreme ...more

In this tutorial, we learn how to paint a cabbage rose using the one stroke technique. Start out by mixing together white and red with your paint brush. After this, add yellow to the tip of the brush and paint it onto the paper using your hand to move the brush gently up and d ...more

In this tutorial, we learn how to draw Demon Realm Pain. To start, you will draw the outline of the character with a pencil. Draw the headband on him first, then draw the eyes, nose, and mouth. After this, draw on the top of the head using a half circle, then draw on the horns ...more

In this tutorial, we learn how to draw a cartoon frog. First, draw an oval fro the face with two small circles sticking up. After this, draw the outline for the legs, arms, and body. Then, draw on the eyes, nose, and a big smile. Make sure to make the toes on the bottom of the ...more

In this tutorial, we learn how to draw skulls the easy way. First, draw a round circle on the page followed by a smaller one connected at the bottom. From here, draw in two sideways triangles on the middle of the large circle. Then, draw in lines on the face and create the sec ...more

In this video, we learn how to draw Hinata. To start, you will draw a circle with lines in between it to place where the eyes will go. Next, you will draw in the eyebrows and the other details around the face. After this, draw in the bangs and the hair, adding lines for them t ...more

In this tutorial, we learn how to draw braided hair. Start off using grid paper and a pencil to practice. Then, draw two lines parallel together and draw a line in between each of those. From here, draw on a circle around these and continue the pattern all the way down until y ...more

In this video, we learn how to draw an eye step by step. First, draw the curve of the eye on the top and on the bottom. Then, draw in the pupil of the eye and the inner corner of the eye. Use a light touch with the pencil to make the circle in the middle of the eye. Then, draw ...more