Area of a
rectangle 221 sq. meters and its perimeter is 60meters
Then what is the length of the rectangle?
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Answer:
17 m
Step-by-step explanation:
Area of rectangle = 221 m²
l × b = 221
l = 221/b
Perimeter = 60 m
2(l+b) = 60
l + b = 30
221/b + b = 30
b² + 221 = 30b
b² - 30b + 221 = 0
b² - 17b - 13b + 221 = 0
b(b-17) -13(b-17) = 0
(b-17) (b-13) =0
b = 17, b = 13
l= 221/b = 221/13 = 17m
Length is 17 meter and
Breadth is 13 meter.
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