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Mathematics, 10.09.2019 23:30 angela6844

What is the missing statement in step 3 of the proof?
given: 21 is complementary to 22.
22 is complementary to 23.
prove: m21=m23
omz1 = m22
m21+ m22 = 90°
m22 = m 23
m22+ m23 = 180°
statements
1. z1 is comp. to 22
2. z2 is comp. to 23
3. ?
4. mz1 - 90°-m22
5 m22+mz3 - 90°
6 m23 -90°-m22
7. mz1 =m23
reasons
1. given
2. given
3. def. of comp. zs
4. subtr. equality prop.
def. of comp. zs
6. subtr. equality prop.
7. trans, prop
and


What is the missing statement in step 3 of the proof?  given: 21 is complementary to 22.

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What is the missing statement in step 3 of the proof?
given: 21 is complementary to 22.
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