- A12s
- B6s
- C8s
- D3s
Step-by-Step Solution
Count the outer edges, each of length s: there are 8 of them, so P = 8s. (12s counts every edge of all three squares, including the 2 shared edges counted twice: 12 − 4 = 8.)
Answer: C) 8s
Three squares of side s are joined to make this L-shape. Which rule gives its perimeter?
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