Question

Q. Find the length of edge of a cube with following surface area:
i) 1944cm²

Answer 1

Given :
TSA of cube = 1944cm2
To find :
Length of edge of cube =?
Let length of edge of cube is a
We know
TSA of cube = 6a2
6a2=1944
a2=1944/6
a2= 324
$a = \sqrt{324}$
a=18cm
Length of the edge of cube = 18 cm