Question

Find the length of a side of a square,whose area is equal to the area of the rectangle with sides 240 m and 70 m.

Answer 1

Length of rectangle (l)=240 m and breadth b)=70 m

$\therefore Area=l\times b=240\times 70m^2=16800m^2\therefore Areaofsquarefield=16800m^{2}andside=\sqrt{Area}=\sqrt{16800}m=\sqrt{400\times 42}=\sqrt{400}\sqrt{42}=20\times 6.481=129.620=129.62m$