Mathematics, 10.08.2021 06:00 phillipmccormick

D 5
Reason
1.
2.
Given: 21:23
Prove: 22 and 23 are supplementary
Statement
1. 21:23
2. mZ1 = m23
3. Z1 and 22 form a linear pair
4. 21 and 22 are supplementary
5. m21+m22 = 180°
6. mZ3+ m2 = 180°
7. 22 and 23 are supplementary
3
4.
5.
6.
7.
A. given
B. substitution property of equality
C. linear pair postulate
D. definition of a linear pair
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5
Reason
1.
2.
Given: 21:23
Prove: 22 and 23 are supplementary
Statement
1. 21:23
2. mZ1 = m23

Answers: 2

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D 5
Reason
1.
2.
Given: 21:23
Prove: 22 and 23 are supplementary