SOLUTION: a circular pond has a radius of 10 feet. there are plans to build a paved path around the pond. if the path is to be 2 feet wide, how many square feet of paving are needed?
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Question 864599: a circular pond has a radius of 10 feet. there are plans to build a paved path around the pond. if the path is to be 2 feet wide, how many square feet of paving are needed?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
The area of just the pond only is exactly square feet.
The radius of pond + the path is 10+2 = 12 ft, so the area of the pond+path is is exactly square feet.
The area of just the path only is equal to the difference of the two areas:
Area of Path DISABLED_event_Only= (Area of Pond+Path) - (Area of Pond Only)
Area of Path DISABLED_event_Only=
Area of Path DISABLED_event_Only=
Area of Path DISABLED_event_Only=
The exact area of the path only is square feet. If you use the decimal approximation of for , then the approximate area of the path is square feet.
Keep in mind that goes on infinitely in terms of the decimal expansion. So use more decimal digits of to get a more accurate picture of the approximate area.
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