Practicing Success
If the height of a cone is 16 cm and its base radius is 12 cm, then its curved surface area is ($\pi$ = 3.14) |
750.6 cm2 752.6 cm2 753.2 cm2 753.6 cm2 |
753.6 cm2 |
Height of cone, h = 16 Base radius, r = 12 Let slant height be "l" $l^2 = h^2 + r^2$ $l^2 = 16^2 + 12^2$ = 256 + 144 = 400 l = 20 cm Curved Surface area = Πrl = Π*12*20 = 240Π The correct answer is Option (4) → 753.6 cm2 |