Question

A cone has a particular base of radius 1 CM and slant ght of 30cm calculate the surface area

Answer 1

I' m not sure......bt using the formula I got the answer 94.2 cm. using L the slant height, r the radius and the value of pie

Answer 2

Heya !!

Here's your answer.. ⬇⬇
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➡ Given :- Radius ( r ) = 1cm
Slant Height ( l ) = 30cm

➡ To Find :- T.S.A = ?
C.S.A = ?

➡ Solution :-

T.S.A = πr ( l + r )
= 22/7 × 1 ( 30 + 1 )
= 22/7 × 31
= 97.42 cm^2

==> T.S.A = 97.42 cm^2

C.S.A = πrl
= 22/7 × 1 × 30
= 94.28

==> C.S.A = 94.28 cm^2
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Hope it helps..

Thanks :)