Asked by aashka
a cone is 8 cm high and radius is 2 cm.the cone is melt and recast into a sphere.find diameter of sphere.
Answers
Answered by
Damon
volume of anything pointy with straight sides = (1/3) height * area of base
so
V = (1/3)(8)(4) pi
for sphere
V = (4/3) pi r^3
so
(4/3) pi r^3 = (1/3)(32 pi)
r^3 = 8
r = 2
diameter = 2 r = 4 cm
so
V = (1/3)(8)(4) pi
for sphere
V = (4/3) pi r^3
so
(4/3) pi r^3 = (1/3)(32 pi)
r^3 = 8
r = 2
diameter = 2 r = 4 cm
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