Definition of Edge
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Solved Example on Edge
How many edges does a cube have?
Corrected Answer: B
Step 1: A cube has two square bases and four square faces joining the two bases.
Step 2: So, the number of edges of a cube = number of edges of the two bases + number of edges joining the bases.
Step 3: = (2 × 4) + 4 = 8 + 4 = 12
Step 4: So, a cube has 12 congruent edges.
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