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Ricky is building a brick path around the fountain in his backyard. The diameter of the fountain is 7 ft. How long must the path around the fountain be? (Use 3.14 for pi)

 Apr 7, 2020
 #1
avatar+111329 
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The path  length  is just  the circumference  of a circle  with a radius of 7/2  =  3.5ft

 

So.....the path  lebgth =

 

2 pi * radius  =

 

2 * 3.14 * 3.5  =   21.98 ft

 

 

cool cool cool

 Apr 7, 2020
 #2
avatar+50 
+2

Since the brick path is around the fountain, which is circular and has a diameter of 7 (radius: 3.5), we can find the circumference of the circle.

 

Circumference: pi * 2 * r

= pi * 2 * 3.5

= 7 pi

= 7 * 3.14

= 21.98

 

Answer: 

21.98 ft

 Apr 7, 2020

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