Answer:
1) Are there 4 right angles? (90° angles)
2) Are there 2 sets of parallel lines?
3) Are there 2 sets of congruent lines?
4) Are there a set of congruent diagonals?
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30. Because 5 times 3 is 15 and 15 times 2 is 30.
Add 7 to the other side.
-13+7=-h
-6=-h
divide by -1
6=h