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Rudiy27
2 years ago
7

I NEED AN EXPLANATION!!!

Mathematics
1 answer:
Dafna1 [17]2 years ago
3 0
X=-30
The interior angles of a triangle are always equal to 180 degrees. If you substitute -30 into the equations you will get both 60 degrees and 30 degrees.
30+60+90=180.

hope that helps!
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