Question

If total surface area of a cube is 2400 sq. cm, find side of the cube .

Answer 1

Answer:

20cm

Step-by-step explanation:

TSA of a cube = 2400sq.cm

but we know that TSA of a cube = 6$a^{2}$

Therefore 6$a^{2}$=2400

=> $a^{2}$=2400/6

=> $a^{2}$ = 400

=> a=$\sqrt{400$

=>a=20cm

Therefore side of the cube is 20cm.

Hope this helps you :D