3. The length of an edge of a cube is l. Find the formula for the sum
of lengths of all the edges of the cube.
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Answer:
The formula for the sum of lengths of all the edges of the cube is 12l.
Step-by-step explanation:
Let, the length of an edge of a cube be l units.
Total no. of edges = 12
The sum of lengths of all the edges of the cube = (l+l+l+l+l+l+l+l+l+l+l+l) units
= 12xl
= 12l units
Hope this helps!
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