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umka2103 [35]
3 years ago
10

In circle M with m \angle LMN= 82m∠LMN=82 and LM=9LM=9 units find area of sector LMN.

Mathematics
2 answers:
wlad13 [49]3 years ago
7 0

Answer:

369/2pi

Step-by-step explanation:

81pi=area of whole circle (pi*r^2)

LMN=82

Area of LMN= 41/180*area of circle

41/180*81pi=

369/2 pi

mario62 [17]3 years ago
6 0

We know that the area of a sector is given by:

A = \dfrac{\pi r^2\alpha}{360}

Where α is the angle in degrees and r is the radius. We have:

  • r = 9
  • α = 82°

Evaluating:

A = \dfrac{\pi r^2\alpha}{360} = \dfrac{\pi(9)^2\cdot 82}{360} = 57.96\ u^2

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