Question 48
Mensuration of Plane ShapesA circular pond of radius 4 m has a path of width 2.5 m round it. Find, correct to two decimal places, the area of the path. [Take π = 22/7]
- A.7.83m2
- B.32.29m2
- C.50.29m2
- D.82.50m2
Show the answer and explanation
Answer: D (82.50m2)
Explanation
Outer radius = 6.5 m. Area = 22/7 × (6.5² − 4²) = 22/7 × 26.25 = 82.50 m².