The perimeter of a rectangle is 54 cm. Its length is twice its breadth. Find its area.
- A.81
- B.144
- C.162 ✓
- D.180
Explanation: Let breadth = b, length = 2b. 2(2b+b) = 54, so 6b = 54, b = 9, length = 18. Area = 18 × 9 = 162 cm².
Class 6 IMO Mathematics Olympiad practice · Geometry & Spatial Thinking · Perimeter & Area
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