2 years ago

Find the area and permeter of the shaded region of the circle:

Mathematics

1 answer:

Musya8 [376]2 years ago

5 0

Answer:

Area: 96 x pi

Perimeter: 8 x pi

Step-by-step explanation:

Area: the shaded part is 1/3 of the circle and is 120 degrees of the 360 degrees of the circle

use the area formula: r^2 x pi x 120/360

plug in r=12 and you should get 96 pi

Perimeter: the formula for circumference is 2 x pi x r x 120/360

plug in r=12 and you should get 8 x pi

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2 years ago

Given: ΔАВС, m∠ACB = 90°,m∠ACD = 30°,AD = 8 cm. Find: CD, Perimeter ΔABC <br><br> Please solve!

sukhopar [10]

If m ACD = 30 => m DCB = 60.
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