# The square of diagonal of a cube is 675 sq cm . find the volume of cube

2
by nidhiramy

2015-03-01T19:19:41+05:30

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let 'a' be the side of the cube.
diagonal of the cube=  √3a^2
by data,
square of diagonal of cube is 675 sq cm
3a^2= 675
a^2= 675/3
a^2= 225
a= 15
volume of a cube= a^3
volume of a cube= (15)^3
= 3375 cm^3
therefore,volume of the cube is 3375 cm^3

2015-03-01T20:23:03+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Let the side of cube = s
diagonal =

given that square of diagonal = 675
⇒3s² = 675
⇒ s² = 675/3 = 225
⇒ s = √225 = 15 cm

volume = s³ = 15³ cm³ = 3375 cm³