The area of a sector is one ywelfth thag of that of the complete circle. Find the angle of the awctor
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area of sector is 1/12 of the area of the circle.
let us consider subtended angle as A.
area of sector = 1/12 area of the circle
A×πr²/360 = 1/12 πr²
A = 360/12
A = 30°
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