Radius of the base and height of a cone are 5 cm and 12 cm respectively. Find its slant height.
Answer & explanation
Correct answer: option 3
Radius, r = 5 cm
Height of cone, h = 12 cm
Slant height, l = sqrt( r^2 + h^2) = sqrt(25+144) = 13
The correct answer is Option (3) → 13 cm