Mathematics

Find the curved surface area of a cone with circular base diameter 10 cm and…

Find the curved surface area of a cone with circular base diameter 10 cm and height 12 cm
  • A.
    25 πcm2
  • B.
    65 πcm2
  • C.
    120 πcm2
  • D.
    156 πcm2
Correct Answer: Option B
Explanation

L2 = 122 + 52
= 144 + 25
= 169
L = √169
= 13
Curved surface Area = πrL
= 5/1 * 13/1 * π
= 65πcm2