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How is pi used to find the area of circles?

Anonymous

∙ 13y ago

Updated: 8/17/2019

Pi x r^2

In that Pi is approx. 3.14 and r^2 is the radius squared.

Easy way to remember Pi , write 3.14 and flip over paper and read from other side (should look like Pi.e

Wiki User

∙ 13y ago

What else can I help you with?

Related Questions

How can pi be used?

Pi (3.141...) is used for circles, and circles only. You use it to find the area and circumfrence.

How do you find the pi circumference and area of circles?

Area=pi times radius squared Circumference=pi times diameter or pi times radius times two

How is pi used to find the circumference of circles?

Circumference of any circle = 2*pi*radius or pi*diameter

How is pi used to find circumference of circles?

Pi times the diameter of a circle gives its circumference.

Why is Pi used to calculate circumference and area of circles?

Because of the radius of the circle

Who figured out the value of pi that is used to measure the area of circles?

Archimedes of Syracuse

How do you find the circumference when you have the area?

If you are talking about circles determine the radius by dividing the Area by pi and take the square root of the result. Then multiply the radius by two times pi.

How did the name pi get used for math?

pi is a letter in the greek alphabet (π) which in math represents the irrational number value of 3.141592653589793238462... we use pi as a variable instead of writing out the endless decimal everytime it is used. By this, we can calculate the area and circumference of circles, you can find the area by πr2 which r is the radius or radii, and to find the circumference it is 2πr.

Why do you use pi to find volume?

You use pi to find volumes that include circles, as volume = area x depth, and the area of a circle always involves pi

How do you find the area common to circles?

pi r squared Area of the circle = pi (radius)2 square units.If we are supposed to find the area between two concentric circles then, let us see the definition first.Concentric circles have a common center and different radii.Area of the large circle – Area of the small circle = Area of the region between the circles.It is called as the annulus part Source: www.icoachmath.com

Why use pi?

Pi is very important for finding circumfrences and area's of circles.

What is the formula for the area of circles?

pi (r^2)

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