### Home > CCG > Chapter 12 > Lesson 12.1.1 > Problem 12-11

12-11.

Use the diagram of * *at right to answer the questions below.

If

, what is? is a right angle. Why? measure of arc

If

and, what is the area of ? Use the Pythagorean Theorem to find the length of

.

How can you use that length to find the area?If the radius of

is 8 and if , what is ?Draw radius

. Use the fact thatand the Law of Sines to find .