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3 years ago

Calcule a área da região sombreada da figura abaixo. 120° 4 cm B

Mathematics

1 answer:

masya89 [10]3 years ago

8 0

Answer:

Area of segment = 9.8 cm² (Approx.)

Step-by-step explanation:

Given:

Angle θ = 120°

Radius of circle = 4 cm

Find:

Area of segment

Computation:

Area of segment = [θ/360][π][r]² - [1/2][r²][sinθ]

Area of segment = [120/360][3.14][4]² - [1/2][4²][sin120]

Area of segment = [0.333][3.14][16] - [0.5][16][0.866]

Area of segment = 16.7299 - 6.28

Area of segment = 9.8019

Area of segment = 9.8 cm² (Approx.)

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mars1129 [50]

Answer:

Option E - None of these answers is reasonable.

Step-by-step explanation:

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Solution :

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