Math, asked by Ashwansingh1, 1 year ago

the dimension of a cuboid are 1 m by 80 cm by 64 cm. it is melted and cast into a cube. find the surface area of the cube.

Answers

Answered by KunalTheGreat
3
Dimensions of cuboid=100*80*64 cm
Vol. of cuboid =100*80*64 cm cube
Vol. Of cuboid =vol. Of cube
100*80*64=(side)3
Side of cube=8
CSA of cube=6(side)2
=6(8*8)=384 m cube

nitthesh7: sry its 80 cm as 512000 cube root is 80 and not 8
KunalTheGreat: oh
nitthesh7: also csa not equal to 6a^2 tsa = 6a^2
Answered by nitthesh7
12
Volume of cuboid = lbh
                             = 100 × 80 × 64
                             = 512000 cm³
As it is melted 
Then,    Volume of cube = Volume of cuboid
                                   a³ = 512000
                                   a  = ∛512000
                                   a  = 80 cm
Surface area of cube = 6a²
                                  = 6 × 80 × 80
                                  = 38400 cm²

:) Hope this helps!!!

nitthesh7: if u find it mos helpful mark it as brainliest
Similar questions