PLEASE HELP Find x
such that ABC ~ DEF.

If the measure of xyz is 81 what is the measure of yz

Landon wrote that 3−2.6=4. which statement about his answer is true?

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.