amandajbrewerdavis
17.10.2019 •
Mathematics
What is the value of x?
a. 55
b. 95
c. 76
d. 63
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Ответ:
so therefore we get
51 + 66 + x + 180 - 132 + 78 + 180 - 139 = 360 (sum of exterior angle of polygon)
284 + x = 360
x = 76°
so it's C.
Ответ:
84
Step-by-step explanation: