### Home > MC2 > Chapter 9 > Lesson 9.3.1 > Problem 9-78

9-78.

Find the area and circumference of a circle with a radius of

Substitute in each equation.

The area is approximately ^{2}. What is the perimeter?

9-78.

Find the area and circumference of a circle with a radius of

Substitute in each equation.

The area is approximately ^{2}. What is the perimeter?