The radius of a cone is 7 cm and area of curved surface is 176 cm². Find the slant height.
Answers
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Given : Radius of cone , (r) = 7 cm
Curved surface area, (C.S.A) = 176 cm²
We know that ,Curved surface area, C.S.A. of a cone = πrl
πrl = 176
22/7 x 7 x l = 176
22 × l = 176
l = 176/22
l = 8
Hence, the slant height of the cone is 8 cm.
Extra information :
Slant height :
The length of the line segment joining the vertex to any point on a circular edge of the base is called the slant height of the cone.
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