A rectangular board is to be cut along the diagonal and the pieces rearranged to form an equilateral triangle;and the sides of the triangle must be 50cm what should be the length and breadth of the rectangle
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perimeter of rec.== perimeter of triangle
150 = 2(l+b)
l+b= 75 =l= 75- b.......(1)
root3/4×50×50 =l×b
l×b= 625root3
(75-b)×b- 625 root3=0
75b-b^2 -625root3
b^2-75b+ 625root3=0
150 = 2(l+b)
l+b= 75 =l= 75- b.......(1)
root3/4×50×50 =l×b
l×b= 625root3
(75-b)×b- 625 root3=0
75b-b^2 -625root3
b^2-75b+ 625root3=0
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