### Home > PC > Chapter 1 > Lesson 1.3.2 > Problem 1-116

1-116.

The circle to the right has a radius of one meter. Homework Help ✎ How many degrees are in a half circle?

What is the length of the arc that covers half of the circle?

Using exact values, what is the length of

? You will have as part of your answer.

It is half of 360° or 180°.

Since the circumference of the circle is 2π(radius), the answer is 2π(1). So what is the arc length of half of the circle?

What part of the circumference will 60° have?