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Magic Triangle

Place the digits 1 to 9 into the circles so that each side of the triangle adds to the same total.

Reference 1 (introduction): Learn-with-Math-Games

Reference 1 (introduction): Learn-with-Math-Games
https://www.learn-with-math-games.com/magic-triangle.html

Reference 2 (demonstration): Math Dad vs Science Mom

Reference 3 (mathematics):

1. Perimeter Magic Triangles http://www.magic-squares.net/perimeter.htm 2. Theorem concerning a Magic Triangle - Teachers of India http://teachersofindia.org/en/download/file/fid/19495