Question

Plz tell formula of TSA OF FRUSTUM

Answer 1

Answer:

The total surface area of the frustum of the cone = π l1 (R+r) +πR2 +πr2

The slant height (l1) in both the cases shall be  = √[H2 +(R-r)2]

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Step-by-step explanation:

Answer 2

TSA of a frustum of a cone = πl(r1 + r2) + πr12 + πr22

Hope this will help you ^_^