Asked by poonam
If the area of rectangle is 24 sqm and its perimeter 20 m.Fram the quadratic equation find lenght and breath.
Answers
Answered by
Reiny
lw = 24
2l + 2w = 20
l+w = 10
l = 10-w
in lw = 24
(10-w)(w) = 24
10w - w^2 = 24
w^2 - 10w + 24 = 0
(w-6)(w-4) = 0
w = 6 , then l = 4
w = 4 , then l = 6
2l + 2w = 20
l+w = 10
l = 10-w
in lw = 24
(10-w)(w) = 24
10w - w^2 = 24
w^2 - 10w + 24 = 0
(w-6)(w-4) = 0
w = 6 , then l = 4
w = 4 , then l = 6
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