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Find the area of the lighter shaded region.

Find the area of the lighter shaded region.-example-1
User Markis
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2 Answers

6 votes
A=1/2(150-sin150)r^2
A=66
Find the area of the lighter shaded region.-example-1
User Ljacqu
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5 votes

Answer:

The area of the lighter shaded region = 38.1 cm²

Explanation:

It is given a circle with a sector and a triangle

Radius of circle = 6 cm

To find the area of sector

Area of circle = πr²

= 3.14 * 6²

= 3.14 * 36

= 113.04 cm²

Central angle of sector = 150°

Area of sector = area of circle (150/360)

= 113.04 *(150/360)

= 47.1 cm²

To find the area of triangle

Area of this triangle = (1/2)r²Sinθ

= (1/2) * 6² * Sin(150)

= 9 cm²

To find the area of the lighter shaded region

Area of lighter shaded region = Area of sector - area of triangle

= 47.1 - 9

= 38.1 cm²

User Ahmad Vatani
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