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nevsk [136]
3 years ago
15

What is the area of a sector when r = 3 and 0 = 2.75 radians?

Mathematics
1 answer:
Ivahew [28]3 years ago
6 0

Area of circle: A=pi×r². This area coresponds to 360degrees, or 2×pi radians.

2×pi ....... pi×r²

t radians....x

where t=2.75rads

Area of t: x=pi×r²×t/2/pi=r²×t/2

Area of t: 3²×2.75/2=9×2.75/2=12.375

Answer: the area of 2.75 radians is 12.375

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