### Home > CC2 > Chapter 9 > Lesson 9.2.4 > Problem 9-90

9-90.

Find the area and circumference of a circle that has a diameter of and as a decimal approximation.

Use the formulas for the area and circumference of a circle:

Area:

Circumference:

9-90.

Find the area and circumference of a circle that has a diameter of and as a decimal approximation.

Use the formulas for the area and circumference of a circle:

Area:

Circumference: