a rectangular field has an area of 18432 square meters . it's width is half as long as it's length find its perimeter
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SOLUTION: The width of rectangular field is half its length. if its area is 512 sq. m find its perimeter. Question 927458: The width of rectangular field is half its length.
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a rectangular field has an area of 18432 square meters . it's width is half as long as it's length.
Given,
Area of rectangle = 18432 m²
Area of rectangle = A= l × b
w = l/2 (given)
∴ Area of rectangle = A = l × l/2
18432 = l²/2
2 × 18432 = l²
l² = 36864
∴ l = 192 m.
w = l/2 = 192/2
∴ w = 96 m.
Perimeter of rectangle = P = 2 ( l + w )
P = 2 ( 192 + 96 )
= 2 ( 288 )
= 576
Therefore, the perimeter of rectangle is 576 m.
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