2018 · Q76
There is a path of width 5 m around a circular plot of land whose area is 144π {m}². The total area of the circular plot including the path surrounding it is
Elementary MathematicsCircles
- A349π m2\mathrm{m}^2
- B289π m2\mathrm{m}^2
- C209π m2\mathrm{m}^2
- D149π m2\mathrm{m}^2
Explanation
The plot's area 144 pi gives radius 12 m. Including the 5 m path, the radius becomes 17 m, so the total area is 289 pi sq m. Hence option B.