Question

find the diameter of a circular base of a right circular cone whose slant height is 8 cm and semi Vertical angle is 60°​

Answer 1

Refer the figure attached.

we are given the slant height = 8 cm

so, 8 =

64 =     ......(1)

We can understand that:

h= 4 cm

Also,

Therefore, the diameter =

Thus, the diameter of the circular base is cm.

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