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McGraw Hill Integrated II, 2012 View details

Practice Test

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Exercise 1 Page 797

Recall that the circumference of a circle is the product of its diameter and pi.

≈ 79 feet

Let's begin with recalling that the circumference of a circle is the product of its diameter and pi. C=π d To find the circumference of the pool we will substitute its diameter, 25 feet, into the above formula.

C=π d

Substitute

d= 25

C=π ( 25)

Multiply

C=78.5398...

RoundInt

Round to nearest integer

C≈ 79

The circumference of the pool is approximately 79 feet.