Question

if a circle has an area and a circumference that are exactly the same then what does the radius of the circle have to be?

Answer 1

Answer:

2

Step-by-step explanation:

1. Identify the equations

Area of the circle

$A = \pi r^2$

Circumference of the circle

$C=2\pi r$

2. Set up an equation.

$\pi r^2 = 2\pi r$

3. Solve for r.

$\pi r^2 = 2\pi r$

$r^2 = 2r$

$r=2$