SOLUTION: A circular flower bed is surrounded by a ring of grass with an Area of 314 square yards. Find the width of the ring of grass.

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Question 165097: A circular flower bed is surrounded by a ring of grass with an Area of 314 square yards. Find the width of the ring of grass.
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Not sufficient data.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Are you sure that you don't want find the "radius" (instead of the "width")? Or do you want to find the diameter?


A=pi%2Ar%5E2 Start with the area of a circle formula


314=3.14%2Ar%5E2 Plug in A=314 and replace pi with 3.14 (this is an approximation)


314%2F3.14=r%5E2 Divide both sides by 3.14


100=r%5E2 Divide


r%5E2=100 Rearrange the equation.


r=10 Take the square root of both sides (only the positive square root is considered).


So the radius of the circle is about 10 yards which means that the diameter is about 20 yards (which is twice the radius)