Exams › SSC CGL (Prelims) › General

Find the area of a sector with a central angle of 120 degrees in a circle whose radius is 6 cm.

1. 12 pi cm^2
2. 18 pi cm^2
3. 24 pi cm^2
4. 30 pi cm^2

Correct answer: 12 pi cm^2

Solution

Sector area = (theta/360) x pi r^2 = (120/360) x pi x 36 = (1/3) x 36 pi = 12 pi cm^2.

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