Question

5. The radius of a cone is 3 cm and height is 4 cm. Find
the area of the curved surface​

Answer 1

Answer:

A≈75.4cm²

Step-by-step explanation:

Hope you solve it fast

Answer 2

Answer:

r =3 cm and h=4 cm

Let l be the slant height of the cone. Then,

l

2

=r

2

+h

2

l

2

=3

2

+4

2

l=5 cm

Therefore,

Area of the curved surface = πrl=

7

22

×3×5=47.14 cm

2