Question

The height and radius of a cone are 3 cm and 4 cm respectively. Its curved surface area must be is

Answer 1

height - 3cm.
radius - 4cm
$\:$
curved area-
$\pi \\ rl$
22÷7
$22 \div 7 \times 4 \times 3 = 37.91$

Answer 2

HLO MATE ✋✋
Simran Here !!!!

Here is Ur answer !!!!!
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Radius of cone= 4cm
Height of cone = 3cm

First ,we have to find slant height (l)

=> l^2 = r^2 + h^2
=> l^2 = (4)^2 + (3)^2
=> l^2 = 25
=> l = 5cm

So ,Slant height of Cone is 5cm

Now ,C.S.A of Cone = pi rl

=> 22/7 × 4×5
=> 440/7
=> 62.85 cm^2

So ,Curved Surface Area of cone is 62.85 cm^2
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