3 years ago

The diameter of a circle of 255 π is:

Mathematics

1 answer:

melisa1 [442]3 years ago

6 0

Hello from MrBillDoesMath!

Answer: 30

Discussion:

The area of a circle of radius R is given by the formula

Pi * R^2

We are given that the area is 225 Pi (Not 255 Pi as stated by the author)

Pi * R^2 = 225 * Pi

Divide both sides by Pi :

R^2 = 225 ---> R = 15

The diameter is twice the radius so the diameter = 30.

Regards, MrB

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