The length of a rectangle is 3 times its breadth. If the breadth is 6 cm, what is the perimeter?
- A.36
- B.42
- C.48 ✓
- D.54
Explanation: Length = 18 cm. Perimeter = 2 × (18 + 6) = 48 cm.
Class 6 IMO Mathematics Olympiad practice · Geometry & Spatial Thinking · Perimeter & Area
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