soniaparveen soniaparveen

10-10-2020
Mathematics

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A rectangular lawn has area 140 square yards. Its length is six less than twice the width. What are the width and length of the lawn?

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saijuchacko saijuchacko

10-10-2020

Answer:

width = let width be w

area = 140

length = 2w-6

Area of a rectangle = l*b

⇒ 2w-6*w=140

⇒ [tex]2w^2-6=140\\2w^2 = 146\\w^2 = 146/2\\w^2 = 73\\w = \sqrt{73}[/tex]

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