At the park there is a pool shaped like a circle with radius 11yd. A ring-shaped path goes around the pool. Its width is 6yd.
6yd
11yd
We are going to give a new layer of coating to the path. If one gallon of coating can cover 8yd2, how many gallons of coating do we need? Note that coating comes only by the gallon, so the number of gallons must be a whole number. (Use the value 3.14 for π.)
3 answers
Help please I'm stuck!!!
Area of the walkway = total area - center area
Note: total area is the largest circle... it's radius is found by adding the radius of the inside circle 11 to the width of the walkway
remember that area is (pi)(r)(r)
Area of walkway = (3.14)(11 + 6)(11+6) - (3.14)(6)(6)
and you finish it off : )
Note: total area is the largest circle... it's radius is found by adding the radius of the inside circle 11 to the width of the walkway
remember that area is (pi)(r)(r)
Area of walkway = (3.14)(11 + 6)(11+6) - (3.14)(6)(6)
and you finish it off : )
Yo are you dense