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The cost of a square meter to cover a circular pool is $2.50. How much would it cost to cover the area of a pool that has a diameter of 25m? Round your answer to the nearest hundredth.

User Pfernandom
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1 Answer

3 votes

Answer: $1226.55

Explanation:

Calculate the area of the circle.


A=\pi r^2

You do not have the radius, but you do have the diameter. Divide the diameter by 2 in order to find the radius.


(d)/(2) =(25)/(2)=12.5m

Plug into the formula:


A=(3.14)(12.5m)^2\\A=(3.14)(156.25m^2)\\A=490.62m^2

Now, each square meter costs $2.50, calculate how much it costs to cover 490.62 square meters.


(2.50)(490.62)=1226.55

User Alwayscurious
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