Question

Find the diameter of the circular base of the right circular cone whose slant height is 8 centimetre and semi vertex angle is 60 degree

Answer 1

Answer:

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Step-by-step explanation:

slant ht = 8cm               α = 60

sinα = radius / slant ht

sin60 = r / 8

r = 8 * √3/ 2

2r  = 8√3

diameter, d = 8√3 cm