A square of a area 9 sq.units is cut along its diagonal into four triangles and these are arranged on another square of 9 sq.units to form a larger square.Then the area of the larger square is
18 sq.units
If a square of an area 9 sq.units is cut along its diagonal into four triangles and these are arranged on another square of 9 sq.units to form a larger square,
Then the area of the larger square is double the area of the original square.
So the area of the larger square formed by joining the 2 squares is 18 sq.units