Perimeter of a square or rectangle – Given s = 3 cm (interpreted as square side): Find the perimeter when the given dimension is s = 3 cm, where s denotes the side of a square.
Aptitude
Area
Difficulty: Easy
Choose an option
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A12
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B13
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C14
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D15
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ENone of these
Answer
Correct Answer: 12
Explanation
Introduction / Context:For a square, perimeter P = 4 * side. The prompt uses s to denote square side.
Given Data / Assumptions:
- s = 3 cm is the side of a square.
Concept / Approach:Apply P = 4s directly.
Step-by-Step Solution:
P = 4 * 3 = 12 cm.Verification / Alternative check:Add all sides: 3 + 3 + 3 + 3 = 12 cm.
Why Other Options Are Wrong:13, 14, 15 are not multiples of 3 for a square perimeter.
Common Pitfalls:Interpreting s as rectangle side without the other dimension.
Final Answer:12