The diameter of a circular pond is 40 m. There is a path around this pond of width 5 m, the area of the path is |
A) \[200\,\pi \,{{m}^{2}}\]
B) \[400\,\pi \,{{m}^{2}}\]
C) \[225\,\pi \,{{m}^{2}}\]
D) \[425\,\pi \,{{m}^{2}}\]
Correct Answer: C
Solution :
According to the. question, |
Area of path \[=\pi \,({{R}^{2}}+{{r}^{2}})=\pi \,({{25}^{2}}-{{20}^{2}})\] |
\[=\pi \,(45)(5)=225\,\pi \,{{m}^{2}}\] |
You need to login to perform this action.
You will be redirected in
3 sec