### Home > INT2 > Chapter 8 > Lesson 8.4.2 > Problem 8-96

8-96.

Use what you know about the area and circumference of circles to answer the questions below. Show all work. Leave answers in terms of .

If the radius of a circle is

units, what is its circumference? What is its area? To calculate the area of a circle use

, for the circumference use. area

circumferenceIf a circle has diameter

units, what is its circumference? What is its area? Use the formulas given in part (a). What is the radius of this circle?

If a circle has circumference

units, what is its area? If a circle has circumference C, what is its area in terms of C?