1. 10.2 Find Arc Measures & 10.4 Use Inscribed Angles and Polygons
Essential Questions:
How do you find the measure of an arc of a circle?
How do you find the measure of an inscribed angle?

2. Daily Homework Quiz
Describe each figure as a minor arc, major arc or a semicircle. Find the arc measure. 1. BC
ANSWER
minor arc, 32 o

3. Daily Homework Quiz
Describe each figure as a minor arc, major arc or a semicircle. Find the arc measure. 2.
CBE
ANSWER
major arc, 212 o

4. Daily Homework Quiz
Describe each figure as a minor arc, major arc or a semicircle. Find the arc measure. 3.
BCE
ANSWER
semicircle, 180 o

5. Daily Homework Quiz
Describe each figure as a minor arc, major arc or a semicircle. Find the arc measure. 4.
Explain why AE = ~ BC .
ANSWER BC AE = ~
m AFE = m BFC because the angles are vertical angles, so AFE BFC.Then arcs and are arcs that have the same measure in the same circle. By definition

6. Two diameters of P are AB and CD.If m = 50 , find m and m . . AD 5.
Daily Homework Quiz AC
Two diameters of P are AB and CD.If m = 50 , find m and m . AD o 5.
ACD
ANSWER o
310 ; 130

7. Daily Homework Quiz
Find the value of x . 1.
ANSWER 38

8. Daily Homework Quiz
Find the value of x . 2.
ANSWER 56

9. Daily Homework Quiz
Find the value of x . 3.
ANSWER 44

10. Daily Homework Quiz
Find the value of each variable. 4.
ANSWER
x = 54; y = 20

11. Daily Homework Quiz
Find the value of each variable. 5.
ANSWER
x = 5; y = 10