Practicing Success
The square of the diagonal of a cube is 2175 cm2 . What is the total surface area (in cm ) of the cube? |
4305 4272 4530 4350 |
4350 |
We know that, Diagonal of cube = \(\sqrt {3}\) × Side of cube TSA of cube = 6s2 Given, The square of the diagonal of a cube is 2175 cm2. ATQ, (\(\sqrt {3}\) × Side of cube)2 = 2175 = 3s2 = 2175 = s2= 725 TSA of cube = 6 s2 = 6 × 725 = 4350 cm2 |