A) \[\text{154 c}{{\text{m}}^{\text{2}}}\]
B) \[\text{66 c}{{\text{m}}^{\text{2}}}\]
C) \[\text{42 c}{{\text{m}}^{\text{2}}}\]
D) \[\text{21 c}{{\text{m}}^{\text{2}}}\]
Correct Answer: C
Solution :
| [c] Area of shaded region A= Area of square ABCD |
| \[=4\times \]Area of quadrants with radius \[7cm\] |
| \[={{(14)}^{2}}-4\times \frac{1}{4}\times \frac{22}{7}\times 7\times 7=196-154=42c{{m}^{2}}\] |
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