Question

if the total surface of a cube is 1014 sq cm find the lateral surface and main diagonal of the cube
​

Answer 1

t.s.a of cube =1014cm sq.

6×a×a=1014

a×a=1014÷6

a×a=169 so, a =13cm

c.s.a (lateral surface area) of cube = 4×a×a

4×13×13=784 cm sq.

main diagonal of cube = √3×a=13√3cm