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Pi x radius(R) squared

e.g radius of circle is 5cm

A=3.14x5 squared

Area is 78.5

Q: How do find the area of a circle?

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The area of a circle is 153.86cm².find the radius of the circle

Make it a whole circle. Find the area. Divide by two.

With great difficulty because a circle does not have volume but it does have an area. Area of a circle = pi*radius2 and measured in square units

If the radius of the circle is R, then the area of the whole circle is Ï€R2 So the area of the semicircle is 0.5*Ï€R2

From Gyanesh Anand Cut it into different sectors of small central angle.then find the area of each sector and add them up to find that area of circle is equal to 2*pi*r

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all you do is find the area of the circle... if you mean find the squares area, find the area of the circle, and then the square's area and subtract the squares area to the circles area

You find the area of the whole square first. Then you find the area of the circle inside of it And then subtract the area of the circle from the area of the square and then you get the shaded area of the square

To find the area of the circle pi*radius*squared and subtract the area of the figure inside

Area of a circle = pi*radius2

Find the area of the circle and divide by 4.

First find the area of the larger circle and then subtract the area of the smaller circle. Area=(pi x radiuslarger)-( pi x radiussmaller)

area of a circle = pi*r2

Area of a circle = pi*radius2

how do you find the area of a semi circle

Area of a circle = pi*radius2

You add the area of the square with the area of the semi circle.

In order to find the diameter of a circle if you have the area is to rearrange the formula for the area of a circle to put diameter as the unknown, like so: PIE*d = Area of a Circle d = (Area of a Circle) / PIE Therefore if the area of your circle is 40cm, 40/PIE = 12.73cm and that's the diameter.