Group 1

Given: ;

Prove:

R

Q

P

T

S

STATEMENTS REASONS

1. ; 1. ____________________

2. + = + 2. ____________________

3. + = ;

+ = 3. ____________________

4. 4. ____________________

Group 2

Given: mAOC = mBOD

Prove: m1 = m3

A

O

C

D

B

12

3

STATEMENTS REASONS

1. mAOC = mBOD 1. ____________________

2. mAOC = m1 + m2; mBOD = m2 + m3

2. ____________________

3. m1 + m2 = m2 + m3

3. ____________________

4. m2 = m2 4. ____________________

5. m1 = m3 5. ____________________

Group 3

Given: m1 = m3;m2 = m4

Prove: mABC = mDEF

C

D1

2 3

F

H

G

4

STATEMENTS REASONS

1. m1 = m3; m2 = m4

1. ____________________

2. m1 + m2 = m3 + m4

2. ____________________

3. m1 + m2 = mABC; m2 + m3 = mDEF

3. ____________________

4. mABC = mDEF 4. ____________________

A EB

Group 4

Given: ;

Prove:

S T

R N

I

U

STATEMENTS REASONS

1. 1. ____________________

2. = + = + 2. ____________________

3. + = + 3. ____________________

4. = 4. ____________________

5. 5. ____________________

Group 5

Given: ;

Prove:

D NWO

STATEMENTS REASONS

1. 1. ____________________

2. = + = + 2. ____________________

3. + = + 3. ____________________

4. = 4. ____________________

5. 5. ____________________