Angles 1 and 2 are supplementary.
which equation represents the relationship between their
measures?
m21+ m22 = 90°
m21 + m22 = 100°
mz1 + m 22 = 180°
m21+ m 22 = 2009
save and evit

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.