Question

What is the approximate circumference of a circle with a radius of 40 inches? Use π ≈ 3.14.

A.
125.6 inches

B.
251.2 inches

C.
502.4 inches

D.
5024 inches

Answer 1

\[\color{green}{C = 2 \pi r}\]

Answer 2

Formula for circumference is : 2πr
The radius is 30, and you are using 3.14 for π so plug them in:
2(3.14)(30)

do the multiplication:
60(3.14)
188.4

And the answer is 188.4 inches Hoped this helped!

Answer 3

Thanks it did!