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posledela
3 years ago
6

A 7 B 17 C 49 D 61 Proving Angles Congruent

Mathematics
1 answer:
OLEGan [10]3 years ago
5 0
7x +2x+27 = 180
9x +27 = 180
-27 -27
9x = 153
÷9. ÷9

x = 17

ANSWER: B
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