adhanom12
15.06.2020 •
Mathematics
Find the values for a, b and c.
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Ответ:
21°, 42°, 117°
Step-by-step explanation:
arc represents the central angle, so angle at the circumference is the half of central angle
b=84°/2= 42°a=42°/2= 21°a+b=180°-c ⇒ c= 180°- (42°+21°)= 180°- 63°= 117°Ответ:
happy 2021 this willl be a good year