SSC (Marathi Semi-English) 10thMaharashtra State Board
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The Radius and Slant Height of a Cone Are 5 Cm and 20 Cm Respectively. Find Its Curved Surface Area. (π = 3.14) - SSC (Marathi Semi-English) 10th - Geometry

ConceptSurface Area of a Combination of Solids

Question

The radius and slant height of a cone are 5 cm and 20 cm respectively. Find its curved surface area. (Π = 3.14)

Solution

r = 5 cm, l = 20 cm

∴ Curved surface area = pirl

= 3.14 x 5 x 20

= 3.14 x 100

= 314 cm2

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Solution The Radius and Slant Height of a Cone Are 5 Cm and 20 Cm Respectively. Find Its Curved Surface Area. (π = 3.14) Concept: Surface Area of a Combination of Solids.
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