The perimeter of one face of a cube is 40cm . Find the sum of length of its edges.
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Answered by
9
Given that perimeter of one face of the cube = 40 cm
Therefore, one edge = 40/4 = 10cm
We know that the total number of edges of a cube = 12
Sum of the length of its edges = 12*10
= 120 cm
Therefore, one edge = 40/4 = 10cm
We know that the total number of edges of a cube = 12
Sum of the length of its edges = 12*10
= 120 cm
Answered by
6
perimeter of 1 side of cube that means perimeter of a square so ,
=> 4a = 40
=> a = 10 cm
there are 12 edges in a cube so ,
10 x 12 = sum of all edges
=> 120 cm
=> 4a = 40
=> a = 10 cm
there are 12 edges in a cube so ,
10 x 12 = sum of all edges
=> 120 cm
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