anthonylopez1
16.12.2020 •
Mathematics
Can someone help me answer this
Solved
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Ответ:
x = 9
Step-by-step explanation:
56 + 3x + 7 = 90° because these angles are complementary
3x + 63 = 90 subtract 63 from both sides
3x = 27 divide both sides by 3
x = 9
Ответ:
opposite angles are equal