yomamaisfat1519
10.02.2021 •
Mathematics
WHATS 1x2x23x3x4x5...
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Ответ:
2760
Step-by-step explanation:
mark me brainliest plz
Ответ:
(4x-80)+60+60=180 [sum of angles of triangle]
4x-80+60+60=180
4x+40=180
4x=180-40
x=140/4
x=35