- A3
- B7
- C9
- D1
Step-by-Step Solution
Since ends in 7, an edge ending in 3 gives a cube ending in 7. (The pair 3 and 7 swap.)
Answer: A) 3
Anika studies the units-digit cube pattern: edges ending in 2 and 8 swap (2->8, 8->2), and 3 and 7 swap (3->7, 7->3).
If a cube's units digit is 7, what is the units digit of the edge length?
Class 8Patterns in CubesCubes and Roots
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