Some of the theorems in this chapter will be things you can prove intuitively!

Point \(B\) is the center of the circle below and line segment \( \overline{AC} \) is tangent to that circle.

**What is the measure of angle \(C?\)**

**Hint:** First figure out the measure of angle \(A.\)

What is the vaule of \(x + y \,?\)

Segment \(\overline{CD}\) is the diameter of the circle below.

True or false?

The green and blue angles are congruent.

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