Question

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

Answer 1

Answer:

10 π ft

Step-by-step explanation:

Given area of circle = 25 π ft²

Using formula:

Area of circle = π r²

Circumference of circle = 2 π r

So, area of circle = π r² = 25 π ft²

r = 5 ft

Now, calculating circumference of circle

Circumference of circle = 2 π r

Circumference of circle = 2 π (5 ft)

Circumference of circle = 10 π ft

Thus, circumference of circle (in terms of π) = 10 π ft.

Answer 2

Answer:

Circle

Solve for circumference

C≈17.72

A Area

25

d

r

r

r

d

d

C

A

Using the formulas

A=πr2

C=2πr

Solving forC

C=2πA=2·π·25≈17.72454గ