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3 years ago

The area of a circle is 9πft^2. What is the circumference in feet?

Mathematics

2 answers:

vlada-n [284]3 years ago

6 0

Answer:

6π ft

Step-by-step explanation:

Area:

A = πr²

Circumference:

C = 2πr

Substitute values in area:

πr² = 9π
r² = 9
r = 3 ft

Circumference is:

C = 2π*3 = 6π

Sholpan [36]3 years ago

3 0

Answer:

Step-by-step explanation:

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