The arclength of the sector becomes the circumference of the base of the cone
let the radius of the cone's base be R
arclength = 6π , (because arc = rØ)
base circumference = 2πR
2πR = 6π
R = 3
The lateral surface of cone A is unwrapped into a sector of central angle 6 radians and radius π. What is the radius of cone A?
1 answer
1 answer