Question

The area of a circle is 25л ft². What is the circumference, in feet? Express your answer in terms of π.​

Answer 1

Answer:

C = 10π ft

Step-by-step explanation:

the circumference (C) of a circle is calculated as

C = 2πr ( r is the radius )

to find r use the area formula, that is

A = πr² = 25π ( divide both sides by π )

r² = 25 ( take square root of both sides )

r = $\sqrt{25}$ = 5

then

C = 2π × 5 = 10π ft