Question

What is the formula of curved surface area and volume if frustum?​

Answer 1

Heya!

Here is ur answer..

The curved surface area of Frustrum is

$\pi(r1 + r2) \sqrt{(r2 - r1)^{2} + {h}^{2} }$

The volume of the Frustrum is

$\frac{1}{3}\pi \: h( {r1}^{2} + r1r2 + {r2}^{2} )$

Answer 2

HeRe Is Your Ans ⤵

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➡π(R+r)l ⇒ curved surface area, where l = √h²+(r-R)²

➡πl (r+R)+ πR+ πr ⇒ total surface area

h be height, l be slant height and r and R the radii of the ends (r>R) of the frustum of cone

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