Question

What is the circumference in inches?

Answer 1

The answer is 16π inches

Explanation:

Given;

• The area of a circle is 64π in²

To Find;

• The circumference of circle = ?

Formula;

• Area (A) = πr²
• Circumference (C) = 2πr

Now,

A = πr²

64π = πr²

Divide both side by π we get,

64π/π = πr²/π

64 = r²

r² = 64

√r² = √64

r = 8 Inches

Here, we got the value of r = 8 in.

Now,

C = 2πr

C = 2π (8)

C = 16π Inches

Thus, The circumference of circle is 16π Inches

TheUnknownScientist 72