Math please help! Select the true statement about ESAM.
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A. ESAM is a parallelogram.
B. ESAM is not a parallelogram.
C. ESAM might be a parallelogram.

What is the product? a-3/15a × 5/a-3

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.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?