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Triangle Island
Age 7 to 11
Challenge Level 
You have pitched your tent (the red triangle) on an island. Can you move it to the position shown by the purple triangle? You must obey the following rules:
You can only move one peg (corner) at a time.
Pegs (corners) must stay on the island.
The area of your tent (the triangle) must always stay the same but the sides may stretch.
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