Question

What is the circumference of a circle whose area is 100%?

Options:
A. 10
B. 20
C. 10π
D. 20π

Answer 1

The circumference of the circle whose area is 100% is 2√π.

Step-by-step explanation:

The formula to find the circumference of a circle is C = 2πr, where r is the radius of the circle.

Since the area of the circle is 100%, we have A = 100% = 1.

Using the formula A = πr², we can solve for r:

1 = πr²

r² = 1/π

r = √(1/π)

Now we can substitute the value of r into the circumference formula:

C = 2π(√(1/π))

C = 2√π

Therefore, the circumference of the circle whose area is 100% is 2√π.