SOLUTION: I solved the diameter using C=2pir I got C=2(3.14)(3)=18.84 (I was wrong)
How many square feet of concrete surface are there in a circular walkway 8ft wide surrounding a tree if
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-> SOLUTION: I solved the diameter using C=2pir I got C=2(3.14)(3)=18.84 (I was wrong)
How many square feet of concrete surface are there in a circular walkway 8ft wide surrounding a tree if
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Question 842353: I solved the diameter using C=2pir I got C=2(3.14)(3)=18.84 (I was wrong)
How many square feet of concrete surface are there in a circular walkway 8ft wide surrounding a tree if the tree has a diameter of 3ft. Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! From the center of the tree to the inner edge of the walk is 3 feet.
From the center of the tree to the outer edge of the walk is (3+8) 11 feet.
The area of cement is the area of a circle with radius of 11 feet minus the area of a circle with a radius of 3 ft.
The area of a circle is,
The area of the cement is then,
