SOLUTION: a circular flower bed of diameter 7 m is to be surrounded by a concrete path 70 cm wide .the quote to supply and lay the concrete mix is $10.50 per square metre .calculate the are

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Question 874957: a circular flower bed of diameter 7 m is to be surrounded by a concrete path 70 cm
wide .the quote to supply and lay the concrete mix is $10.50 per square metre .calculate the area of the path?
and the cost of the path?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Area of the concrete path is pi%2A7.7%5E2-pi%2A7%5E2 square meters, using 0.70 meter for 70 centimeters.
That area, pi%287.7%5E2-7%5E2%29
pi%287.7-7%29%287.7%2B7%29
pi%2A%280.7%29%288.4%29
area is 18.47 square meters. You can apply the price of concrete.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

a circular flower bed of diameter 7 m is to be surrounded by a concrete path 70 cm
wide .the quote to supply and lay the concrete mix is $10.50 per square metre .calculate the area of the path?
and the cost of the path?


Area of path:  5.39%2Apim%5E2, or highlight_green%2816.93m%5E2%29

Cost of path:  $highlight_green%28177.80%29

You can do the check!! 



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