The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
- 14 cm
- 16 cm
- 18 cm
- None of these
Explanation
Let breadth = bPerimeter = 5b
2(L + b) = 5b
2L + 2b = 5b
2L = 3b
L = 1.5b
Area = L _ b = 216
1.5b _ b = 216
1.5b² = 216
b² = 144
b = 12 cm
L = 1.5 12 = 18 cm
Last verified on 09-10-2026
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