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501 Tangram Challenges
Are you ready to face 501 challenges of the classic Tangram puzzle? Solve hundreds of built-in challenges, construct your own Tangram shapes, and challenge your friends to recreate them! The object of the game is to form a particular shape from the pieces (tans). Tangram is very useful for children, because it helps to develop creative and mathematical abilities, spatial imagination, accuracy, and patience.
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Triangulator_for_PC
This little program makes it really easy to do trigonometric calculations. Just enter any combination of three parameters (sides, angles or height) and hit the calc button. . Supports radians, decimal degrees, degrees & decimal minutes or degrees, minutes and seconds. Available for Microsoft Windows, Pocket PC or PalmOS)
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