Question

A circular fountain 10 feet in diameter has a circular walk 3 feet wide paved around it. What is the area of the walk?

Answer 1

Hi there!

• Radius =
`(10)/(2)` ft = 5 ft.

Area of the fountain = πr² = 3.14 x (5)² = 78.5 ft²

•Radius for fountain n' walk =
`(10 + 3)/(2)` =
`(13)/(2)` = 6.5 ft

Area of fountain n' walk = πr² = 3.14 x (6.5)² = 132. 6 ft²

| Area of th' Circular walk |

132.6 - 78.5 ft² = 54. 1 ft²
ar( Larger circle ) - ar( Smaller circle )

Hence,
The area of the walk around the fountain is 54. 1 ft²

~ Hope it helps!