A rectangular park in New Delhi, developed by the local authority, has the
following dimensions in metres: 11x - 7 by x + 5y. If x = 10 and y = 20, find the
area and perimeter of the park.
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Area = 11330 units Perimeter= 426 units
Step-by-step explanation:
Given :-
- Length of park = 11x - 7
- Width of park = x + 5y
- Value of x = 10
- Value of y = 20
To Find :-
Perimeter of park = ? And Area of park = ?
As we have the dimensions of the park and value of 'x' & 'y', we will find the measure of Length and Width of park.
Length = 11(x) - 7 = 11(10) - 7 = 110-7 = 103 units
Breadth = (x) + 5(y) = (10) + 5(20) = 110 units
Perimeter = 2(l+b) units
= 2( 103+ 110 ) units
= 2(213) units
= 2 * 213 units
= 426 units
Area = lb
= 103 * 110
= 11330 units
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