Question
Triangle WXY and triangle ZXY share the same base XY. The height of the triangle WXY is 4 times the height of Triangle ZXY. Given that ZA is 5 cm and XY is 18 cm, find the area of the shaded part.
4 m

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Triangle WXY and triangle ZXY share the same base XY. The height of the triangle WXY is 4 times the height of Triangle ZXY. Given that ZA is 5 cm and XY is 18 cm, find the area of the shaded part.