What would be the length of the diagonal of a square plot whose area is equal to the area of a rectangular plot of 45 m length and 40 m width?  Choose the correct choice from the following choices:
A) 42.5 m
B) 60 m
C) 4800 m
D) Data inadequate
E) None of these
a2 = 45 × 40 = 1800   ∴ a = √1800=30√2   ∴ Diagonal of the square = √2 a = √2 × 30√2   = 30 × 2 = 60 m   Answer 60 m
<result>B</result>
What would be the length of the diagonal of a square plot whose area is equal to the area of a rectangular plot of 45 m length and 40 m width?