A) \[858.5\,\,{{m}^{2}}\]
B) \[850.5\,\,{{m}^{2}}\]
C) \[798.8\,\,{{m}^{2}}\]
D) \[901.5\,\,{{m}^{2}}\]
Correct Answer: B
Solution :
[b] Area of square field\[=63\times 63=3969\,{{m}^{2}}\] Area of field grazed by horses\[=4\times \frac{\pi {{r}^{2}}\theta }{360}\] \[=\frac{22}{7}\times \frac{36}{2}\times \frac{63}{2}\times \frac{90}{360}\times 4\] \[=3118.5\,{{m}^{2}}\] Required area \[=3696-3118.5=850.5\,{{m}^{2}}\,\]
You need to login to perform this action.
You will be redirected in
3 sec
