Asked by Nithin
(please explain with brief explanation)
The area of a rectangular field is 2000 sq.m and its perimeter is 180m. Form a quadratic equation by taking the length of the field as x and solve it to find the length and breadth of the field. the length and breadth are A) (205m, 80m) B) (50m, 40m) C) (40m, 50m) D)None
The area of a rectangular field is 2000 sq.m and its perimeter is 180m. Form a quadratic equation by taking the length of the field as x and solve it to find the length and breadth of the field. the length and breadth are A) (205m, 80m) B) (50m, 40m) C) (40m, 50m) D)None
Answers
Answered by
Damon
length = x
width = 2000/x
2x + 2 (2000/x) = 180
x + 2000/x = 90
x^2 + 2000 = 90 x
x^2 - 90 x + 2000 = 0
width = 2000/x
2x + 2 (2000/x) = 180
x + 2000/x = 90
x^2 + 2000 = 90 x
x^2 - 90 x + 2000 = 0
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