1
Which expression is equivalent to al3 + ?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

X+y=-4 x-y=2 use elimination with adding and subtraction

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.