Question

answer plz if the smaller face of the frustum is open then what is the TSA of cone also mention the formula of TSA of cone if larger diameter face is open like a bucket
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Answer 1

Answer:

When the smaller face of the frustum of cone is open then formula is = πl(R+ r) + πR²

when the larger diameter is open then = πl(R+r) +πr²

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