### Home > GC > Chapter 12 > Lesson 12.1.3 > Problem 12-29

12-29.

Use the diagram of ⊙

*C*below to answer the questions below it. Homework Help ✎

If

*m*= 28°, what isx ? If

*AD*= 5 and BD =, what is the area of ⊙ *C*?If the radius of ⊙

*C*is 8 and if= 100°, what is *BD*?

∠*D* is a right angle. Why?

Use the Pythagorean Theorem to find the length of *AB*.

How can you use that length to find the area?

measure of arc *AD* = 124°

25π un^{2}

Draw radius *CD*. Use the fact that ∠*BCD* = 100° and the Law of Sines to find *BD*.