1. Day 4 Circles
11-3 Inscribed Angles

2. Warm-Up
Find the perimeter
Find x: Find x:

3. HW Check
BC=105, AB=116
11. ML=9, OP=18, OK=9

4. Central Angle
Has vertex at the center of the circle. P is the center of the circle. <TPQ is a vertex angle

5. Arcs: Measure of minor arc = measure of the central angle.
Measure of major arc = 360 – minor arc
Ex 1: <BKC = 35
Find the measure of:
Minor Arc
Major Arc

6. Inscribed Angle – has a vertex on the circle!
Measure of an inscribed angle = ½ its arc.
Find the measure of
JKL .

7. Opposite angles of Quadrilateral inscribed in a circle are supplementary.

9. 11-3 Examples

10. Homework!