Q: How is pi used to determine the area of a circle?

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Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle

The area of a circle is pi * radius2. If you already have the radius squared, you just have to multiply that by pi.

It is used to find the area of a circle as pi*radius2

It is used in finding the circumference and area of a circle. Circumference = 2*pi*radius or pi*diameter measured in linear units Area = pi*radius2 measured in square units

Using 3.14 as Pi the area of circle is: 0

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Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle

pi r^2 h is used to determine the volume of a cylinder because when determing the area of a shape you first have to determine the area of the the base of the object and then multiply it by the height. The base of a cylinder is a circle and to find the area of a circle you use pi r^2 and hence the reason why pi r^2 is used to find the volume of the cylinder.

The formula for the area of a circle is pi x radius x radius or pi(r2).

The area of a circle is pi * radius2. If you already have the radius squared, you just have to multiply that by pi.

They both use pi to determine their values

To find out the area of a circle.

The area of a circle with a 12' diameter is pi*(d/2)2 = 113.1 sq feet.

First we have to find the radius: 2*pi*radius = 18*pi Divide both sides by 2*pi to find the radius: radius = 9 inches Area of a circle = pi*radius2 Area = pi*92 = 81pi or 254.4690049 square inches

Pi is used to find area and circumference of a circle.

It is used to find the area of a circle as pi*radius2

It is used in finding the circumference and area of a circle. Circumference = 2*pi*radius or pi*diameter measured in linear units Area = pi*radius2 measured in square units

Area = (pi) (R)2