The area of rectangular field of length 90 meters and breadth 80 meters is equal to the area of a square plot. What will be the length of the diagonal of the square plot? Answers
A) 100m B) 120m C) 95m D) 80m E) 150m
Given that the length of the rectangular field l = 90 m and breadth = b = 80 m.   Then its area lb = 90 x 80 sq.m   We know that the area of square = (1/2)x(diagonal)2   from the given question, we have area of square plot = area of rectangular field   That is, 90 x 80 = 1/2 x diagonal2   diagonal^2 = 2 x 7200 = 14400 = (120)2   diagonal = 120 m.hence 120m
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The area of rectangular field of length 90 meters and breadth 80 meters is equal to the area of a square plot. What will be the length of the diagonal of the square plot?