You may also like  problem icon    problem icon  Tiles on a
Patio   problem icon    Triangle Island   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.