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A town is planning a new rectangular park. The park will have a length equal to twice it's width. A sidewalk 2 meters wide will surround the park. The area of the park and sidewalk is given in the formula A= 2x(to the power of 2) +12x+16. In the formula x is the width of the park. The park is 70 meters wide. What is the total area of the park and sidewalk. Show your steps.

 Feb 4, 2015

Best Answer 

 #1
avatar+128731 
+5

A town is planning a new rectangular park. The park will have a length equal to twice it's width. A sidewalk 2 meters wide will surround the park. The area of the park and sidewalk is given in the formula A= 2x(to the power of 2) +12x+16. In the formula x is the width of the park. The park is 70 meters wide. What is the total area of the park and sidewalk. Show your steps.

 

 

So we have

 2(70)^2 + 12(70) + 16 = 10656m^2 and that's the total area of the park and the sidewalk

The park's width, without the sidewalk, is just 66 and the length is twice that = 132.

So, the area of the park, not icluding the sidewalk is just 66 x 132 = 8712m^2

So the area of the sidewalk is the difference between the above = 10656 - 8712 = 1944m^2

 

 Feb 4, 2015
 #1
avatar+128731 
+5
Best Answer

A town is planning a new rectangular park. The park will have a length equal to twice it's width. A sidewalk 2 meters wide will surround the park. The area of the park and sidewalk is given in the formula A= 2x(to the power of 2) +12x+16. In the formula x is the width of the park. The park is 70 meters wide. What is the total area of the park and sidewalk. Show your steps.

 

 

So we have

 2(70)^2 + 12(70) + 16 = 10656m^2 and that's the total area of the park and the sidewalk

The park's width, without the sidewalk, is just 66 and the length is twice that = 132.

So, the area of the park, not icluding the sidewalk is just 66 x 132 = 8712m^2

So the area of the sidewalk is the difference between the above = 10656 - 8712 = 1944m^2

 

CPhill Feb 4, 2015

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