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Svetlanka [38]
3 years ago
9

What is this answer because I can't figure this out and my math teacher doesn't explain it very well

Mathematics
2 answers:
iVinArrow [24]3 years ago
5 0
72+72+144 and 144 minus 360 equals 216 so half of 216 is 10. so the top and bottom are 108 degrees.
Effectus [21]3 years ago
3 0
72 = x+15 
-15      -15
57 = x
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