the permeter of one face of a cube is 40 cm find the lsa and tsa the cube
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Let length of one edge of the cube is a
Perimeter of one face of a cube is 40 cm
⇒4a=40
⇒a=
4
40
⇒a=10 cm
length of one edge=10 cm
no of edge in a cube=12
sum of length of all the edges of cube=12×10cm =120cm.
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