[url=https://www.learn-with-math-games.com/magic-triangle.html][size=85][size=100]https://www.learn-with-math-games.com/magic-triangle.html[/size][/size][/url]
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 2 (demonstration): Math Dad vs Science Mom
Reference 3 (mathematics):
1. Perimeter Magic Triangles[url=http://www.magic-squares.net/perimeter.htm][br]http://www.magic-squares.net/perimeter.htm[br][br][/url]2. Theorem concerning a Magic Triangle - Teachers of India[br][url=http://teachersofindia.org/en/download/file/fid/19495]http://teachersofindia.org/en/download/file/fid/19495[/url]
Reference 4 (worksheets):
A Magic Classroom[br]1. [url=http://amagicclassroom.com/uploads/3/4/5/2/34528828/magic_triangle_3_sides_.pdf]http://amagicclassroom.com/uploads/3/4/5/2/34528828/magic_triangle_3_sides_.pdf[/url][br]2. [url=http://amagicclassroom.com/uploads/3/4/5/2/34528828/magic_triangle_4_side.pdf]http://amagicclassroom.com/uploads/3/4/5/2/34528828/magic_triangle_4_side.pdf[/url]
Reference 5 (Math Playground)
[url=https://www.mathplayground.com/magic_triangle.html]https://www.mathplayground.com/magic_triangle.html[/url]