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a part 1 metre wide is the field inside a square Park of side 30 M along its I its side find the area of the path calculate the cost of constructing the path at the at the rate of 70 per metre
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a part 1 metre wide is the field inside a square Park of side 30 M alo...
Gn, 
side of square park (A) = 30m
width of path  = 1m
side of inner park (a) = 30-1-1 = 28m
cost of construction = 70 per m^2
 Area of path = Area of square park - area of park inside the path 
 = A^2  -  a^2
 = 30^2 - 28^2
 = 900 - 784
 = 116m^2
  Cost of construction of path  = 70x116
                                                =8120  

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a part 1 metre wide is the field inside a square Park of side 30 M along its I its side find the area of the path calculate the cost of constructing the path at the at the rate of 70 per metre Related: Understanding:Area of Squares and Rectangle, Perimeter and Area, Class 7 Math
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