Question

the diagonal of a cube is 6root3 cm. find its surface area and volume

Answer 1

Let the edge of the cube be a.  

 so, the diagonal  a√3 = 6√3    

=> a=6 

 Surface area = 6a2 = 6 x 6 x 6 = 216 sq.cm

volume = a^3 = (6)^3 = 216 cm^3

Answer 2

diagol of cube is a a root three than answer is 6 root three and surface area is 6a ka cube than it is 216