Question
Two identical triangles, UVT and RSW, overlap each other as shown. Given that UV = RS = 10 m and VT = WS = 9 m, what is the area of the figure that is unshaded?
3 m

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Two identical triangles, UVT and RSW, overlap each other as shown. Given that UV = RS = 10 m and VT = WS = 9 m, what is the area of the figure that is unshaded?