Chapter 9.1, Problem 38E

Continuing the situation from Exercises 31–36, use the given information to answer Exercises 37–40.

In Exercises 31–36, you are given two of the following three pieces of information: the circumference of the circle, the measure of the central angle ACB, and the length of arc AB. Find the third piece of information.

Figure for Exercises 31–40

$m\angle ACB=30°;\text{ length of arc }AE=10\text{ meters}\text{. Find the circumference}\text{.}$