1. AGENDA KAHOOT REVIEW LESSON 81 WORK TIME

2. LESSON 81: CENTRAL ANGLES AND ARCS Central Angle: an angle whose vertex is the center of the circle.

3. ARC Arc: a portion of the circle intercepted by a central angle. Minor Arc: less than a semicircle. Major Arc: more than a semicircle.

4. WHAT IS THE MEASURE OF ARC TC? T C

5. What is the measure of arc AC in degrees? What fraction of the circumference is the arc intercepted by ∠ ABC ? If the radius of the circle is 4 cm, what is the length of the arc in terms of π ?

6. Lesson 81 A – D All, #1 – 6 All. CP: #21 Due Thursday