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A sector of central angle 60degree is cut from a circle of radius 10cm. it is bended to form of cone. what is the slant height of the cone ? |
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Answer» Given : A sector of central angle 60degree is CUT from a CIRCLE of radius 10cm. it is BENDED to form of cone. To Find : SLANT height of the cone Solution: Radius of Circle will be slant height of the cone Hence Slant height of cone = 10 cm Circumference of base of cone = ( 60/360°) 2π(10) = (1/6)2π(10) radius of cone = r => 2πr = (1/6)2π(10) => r = 10/6 => r = 5/3 Height of cone = √(10² - (5/3)²) = 9.86 cm Learn More: 1. A frustum of a right circular cone of height 16cm with radii of its ... A washing tub in the shape of a frustum of a cone has height 21 cm ... |
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