The perimeter of one face of a cube is 40 cm. Find the sum of lengths of its edges?
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perimeter of one face = 40 cm
length of one edge = 40/4 = 10 cm
there are 12 edges in a cube
sum length of edges = 12 x 10 = 120 cm
length of one edge = 40/4 = 10 cm
there are 12 edges in a cube
sum length of edges = 12 x 10 = 120 cm
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