Question

If the lateral surface area of a cone is 308cm square and its slant height is 14cm find 1.radius of the base 2.total surface area of the cone

Answer 1

GIVEN LSA=308
SLANT HEIGHT=14CM


1. πrl=308
22/7×r×14=308
r=308×7/22×14
r=7cm

2. TSA=πr(l+r)
=22/7×7(14+7)
=22/7×7×21
=462cm^2

Answer 2

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