Asked by Christian
If the slant height of a cone is 5cm and the angle of sector is 180.find the curved surface area of the cone.
Answers
Answered by
oobleck
It sounds like your cone was formed by curving a semicircle of radius 5.
So, for the cone, the radius of the base is the circumference divided by 2π
That is, r = 5π/2π = 5/2
The area of the cone is πr(r+s) = _____
So, for the cone, the radius of the base is the circumference divided by 2π
That is, r = 5π/2π = 5/2
The area of the cone is πr(r+s) = _____
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