Question
PSLE
WXYZ is a square. The shaded parts A and B are two squares with different areas. All the corners of squares A and B lie either on the sides of square WXYZ or on the line WY. If the area of the square is 7164 m². Find the total unshaded area.
3 m

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PSLE
WXYZ is a square. The shaded parts A and B are two squares with different areas. All the corners of squares A and B lie either on the sides of square WXYZ or on the line WY. If the area of the square is 7164 m². Find the total unshaded area.