Question
PSLE
QRST is a square. The shaded parts U and V are two squares with different areas. All the corners of squares U and V lie either on the sides of square QRST or on the line QS. If the area of the square is 1836 m². Find the total unshaded area.
3 m

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PSLE
QRST is a square. The shaded parts U and V are two squares with different areas. All the corners of squares U and V lie either on the sides of square QRST or on the line QS. If the area of the square is 1836 m². Find the total unshaded area.