Question
The figure shows a rectangle and 3 triangles X, Y and Z. AB is a straight line. Given that the total area of Triangle X and Triangle Y is 312 cm2, find the sum of the areas of W and Z.
3 m

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The figure shows a rectangle and 3 triangles X, Y and Z. AB is a straight line. Given that the total area of Triangle X and Triangle Y is 312 cm2, find the sum of the areas of W and Z.