Asked by Joseph

A sector if circle substends at an angle 270 degree. With a radius of 14cm. It is folded into a cone,
a] what is the base radius of the cone
b] what is the total surface area of the cone?
Answered by oobleck
(a) r = 270/360 * 14
(b) a = πr(r+14)
Answered by Naeyarh
73.5
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