Asked by Soniya
A cone has slant height of 29cm and a circular base of diameter 42cm.calculate the vertical height of the cone.
Answers
Answered by
Soniya
I need a help pls
Answered by
mathhelper
Make a sketch of the cross-section of the cone to realize that
you are simply faced with Pythagoras, the slant height being the hypotenuse.
let the height be h
h^2 + 21^2 = 19^2
h^2 = 841 - 441 = 400
h = √400 = 20 cm
you are simply faced with Pythagoras, the slant height being the hypotenuse.
let the height be h
h^2 + 21^2 = 19^2
h^2 = 841 - 441 = 400
h = √400 = 20 cm
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