Question

A cube is cut into a cone. Length of a side of the cube is 7 cm. The height and radius of the cone is 7am and 3 cm. What will be the remaining of the cube?

Answer 1



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Secondary SchoolMath15 points

A solid cube of side 7 cm is melted to make a cone of height 5 cm, find the radius of the base of the cone.

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Ask for details FollowReport byManishverma3253 21.12.2017

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aditibharti733Expert

I hope.... write approximately 8cm



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Hola there 

Given,

Edge of cube, a = 7 cm

Volume of cube = a3

= (7)3

= 343 cm3

Height of cone, h = 5 cm

Let radius of the cone be r

Volume of cone = Volume of cube

1/3TTr2h = 343

1/3*22/7*r2*5 = 343

r2 = 65.482

r = 8.1 cm