What is the missing statement in step 3 of the proof?
given: 41 is complementary to 22
22 is complementary to 23.
prove: m21 = m23
omz1 = m22
o mx1 + m2 = 90°
o m 2 = m23
om_2 + m23 = 180°
statements
21 is comp. to 2
2 is comp to 23
-
reasons
given
given
3. def. of comp. ls
subtr equality prop
def of comp. zs
6. subtr equality prop
7. trans prop
m_1-90°-m 2
5. m2-m23-90
6 m23-90°-m2
7 m21-23
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