Mr Tan's HDB bedroom is rectangular. The perimeter of the bedroom floor is 32 m and the breadth is 5 m. What is the length of the bedroom floor?
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Worked Solution
Step 1: Recall the perimeter formula for a rectangle: P = 2 × (length + breadth).
Step 2: Substitute the known values: 32 = 2 × (length + 5).
Step 3: Divide both sides by 2 to find length + breadth: 32 ÷ 2 = 16, so length + 5 = 16.
Step 4: Subtract the breadth from 16 to find the length: length = 16 − 5 = 11 m.
Step 5: Check by substituting back: 2 × (11 + 5) = 2 × 16 = 32 m. ✓
Final answer: 11 m.
Answer: 11 m
Correct answer: 11 m
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