Math, asked by nikky28, 1 year ago

please solve this question. .....21 (2)

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Answered by Jeremia

Surface area of remaining solid = 6L2 - πr2 + πrℓ, where r and l are the radius and slant height of the cone.

ℓ = √(72 + 142) = 7√5

L = 14 cm

r = 14/2 = 7 cm

Surface area of remaining solid = (1022 + 154√5) cm2.

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