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3 years ago

How do u use pie in equation

Mathematics

2 answers:

yarga [219]3 years ago

8 0

You normally use pie in equation that had the circumference or radius or diameter. !<span />

alexandr402 [8]3 years ago

5 0

Normally in Areas, Circumference, Diameter, and Radius since pi (π) goes in every one of those formulas of the followings :)
Eg. 2πr is the circumference
pi is 3.14 :)

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velikii [3]

The formula of an area of a circle with radius r:

$A=\pi r^2$

Part A.

We have diameter of the circle d = 8 in. The diameter of a circle is equal two times length of a radius.

Therefore:

$r=\dfrac{d}{2}\to r=\dfrac{8}{2}=4\ in$

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Part 2.

Look at the picture.

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$A=\pi\cdot6^2=36\pi\ in^2$

Answer: C. 36π square inches

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