TuesdaySeptemb

er 25th

Daily Check:Central Angles & Inscribed Angles

You need your own half sheet of paper!

Daily Check

AB

C

D

E F

70◦

and are diametersAD EC

¼1. Find 2. Find

m EFBmECBÐ

L

G

H

J

KM

30◦

20◦

ºº ¼

3. Find 4. Find 5. If 50 , find

m LGKmHJ

mJK mHKL

Ð

= o

Review!

P

A

BC

ANGLE = ARC

Case I: Vertex is AT the center

Case II: Vertex is ON circle

ANGLE = ARC

2ANGLE

ARCANGLE

ARC

Ex. 1 Find m1.

84°

1

m1 = 42

Ex. 2 Find m1. 202°

1

m1 = 79

Case III: Vertex is INSIDE circle

ARC+ARCANGLE =

2

AB

C

D

ANGLE

ARC

ARC

Ex. 3 Find m1.A

B

CD

1

93°

113°

m1 = 103

Ex. 4 Find mQT.N

Q

TM

9284

mQT = 100

Ex. 5 Find x.

x = 89

45

93

xº

89

New!

Case IV: Vertex is OUTSIDE circle

A

B

C

D

ANGLE = (Large ARC Small ARC)

2

ANGLE

LA

RGE

AR

C

small

ARC

A

B

D

1

Ex. 6 Find m1.

65°

15°

m1 = 25

A

B

Ex. 7 Find mAB.

27°

70°

mAB = 16

1

Ex. 8 Find m1.26

0°

m1 = 80

Workbook

Pages 225 &

226

Daily Check:Vertex Inside & Vertex Outside

You need your own half sheet of paper

TextbookPage 214

#1-15 & 19