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mart [117]
3 years ago
8

Geometry quiz! not my strong suit. help please

Mathematics
1 answer:
Maksim231197 [3]3 years ago
8 0

Assuming PQRS is a parallelogram, we have PQ = RS, and angles S and R are supplementary so their measures sum to 180°.

So

5<em>x</em> = <em>x</em> + 12

4<em>x</em> = 12

<em>x</em> = 3

→   PQ = 5<em>x</em> = 15

and

12<em>z </em>° + 6<em>z</em> ° = 180°

18<em>z</em> ° = 180°

<em>z</em> = 180/18 = 10

→   m∠<em>S</em> = 12•10° = 120°

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