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The area of the greatest circle, which can be inscribed in a square whose perimeter is 120 cm, is :
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22 × (15)² cm² 7 -
22 × 
7 
² cm² 7 2 -
22 × 15 ² cm² 7 2 -
22 × 9 ² cm² 7 2
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Correct Option: A
Using Rule 14,
| Side of the square = | = 30 cm. | |
| 4 |
Clearly, diameter of the greatest circle = Side of the square = 30 cm
| ∴ Radius = | = 15 cm. | |
| 2 |
Required area = π × (radius)²
| = | × (15)² cm² | |
| 2 |
