Question

The surface area of a cube is 387cm square. Find the length of an edge

Answer 1

surface area of cube = 6l^2

387cm^2 = 6l^2

387/6 =l^2

129/3 = l^2

43 = l^2

l= 6.583

Answer 2

6 x side square= 387

side square=387/6

side= root 64.5=8.03 cm(approx.)

this is the answer according to the data provided by u