nothingworksoutforme
12.05.2021 •
Mathematics
A sector of a circle has central angle 210 degrees and arc length 287 units. What is the radius of the circle?
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Ответ:
Step-by-step explanation:
210÷360=287÷P
7÷12=287÷P
P=287×12÷7
P=41×12
P=2πr=12×41
(π≈3)
6r=12×41
r≈2×41=82
Ответ: