CUET Preparation Today
The curved surface area of a right circular cone of height 12 cm and base diameter 10 cm is: |
$65 π\, cm^2$ $75 π\, cm^2$ $130 π\, сm^2$ $100 π\, cm^2$ |
$65 π\, cm^2$ |
Cone height, H = 12 cm Base Dia D = 10 cm r = 5 cm Slant Height, L = sqrt(122 + 52) = sqrt (169) = 13 Curved surface area = πrL = π*5*13 = 65π The correct answer is Option (1) → $65 π\, cm^2$ |
