In Fig. 6, find the area of the shaded region [Use\[\pi =3.14\]] |
Answer:
Area of square (ABCD) \[=14\times 14\] \[=196\,\,c{{m}^{2}}\] Area of small square (EFGH) \[={{(7-3)}^{2}}\] \[=4\times 4=16\,\,c{{m}^{2}}\] 4 (Area of semicircle) \[=4\times \frac{\pi {{r}^{2}}}{2}\] \[=2\times 3.14\times 2\times 2\] \[=25.12\,\,c{{m}^{2}}\] \[\therefore \] Required area (shaded) = Area of square\[\]Area of small square\[-4\times \]Area of semicircle \[=(196-16-25.12)c{{m}^{2}}\] \[=154.88\,\,c{{m}^{2}}\]
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