Question

the perimeter of one face of a cube is 40cm. find the sum of lengths of its edges.

Answer 1

it is 10 cm each side because cube is also a square so 40/4=10
so,,,

10*12= 120


because it has 12 edges




.............
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Answer 2

perimeter of face of cube=4×side
=40cm
so,side=40/4
=10cm
cube =12edges
so,length of the edges=10×12
=120cm