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Shaded Triangle
Problem
Find the area of the shaded square.
Solution
By splitting the diagram into triangles,
It can be seen that 4/9 of the diagram is shaded. That is, 4/9 × 18 = 8 units2.
What is the perimeter of the shaded square?
Problem ID: 98 (Jan 2003) Difficulty: 2 Star
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