Question

Find the curved surface area of the cone whose height it is 12 and base radius is is 5 cm

Answer 1

Answer: 204.28 cm²

Step-by-step explanation:

please refer to image attached with the answer

l = (12²+5²)½        [by pythagoras theorem]

 = 13 cm

now, curved surface area of cone = πrl

= 22/7 × 5 × 13

= 204.28 cm²

hope this answer helps and clears your concept.

Regards:

Aakash Maurya