Question
निम्नलिखित आकृतिका क्षेत्रफल ज्ञात कीजिए:



| Covered Area | Total Numbers | Area |
| Fully filled squares | 9 | 1 × 9 = 9 |
| Half filled squares | 0 | $\frac{1}{2} \times 0=0$ |
| More than half-filled squares | 9 | 1 × 9 = 9 |
| Less than half-filled squares | 7 | 0 × 7 = 0 |
Area $=9(1)+0\left(\frac{1}{2}\right)+9(1)+7(0)$
= 9 + 0 + 9 + 0
= 18 square units
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