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26. How many triangles can be drawn with four non-collinear points?
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When you have four non-collinear points and you join them together you can construct a quadrangle with these 4 points. Draw the diagonals and see what you get. You get 2 triangles on each side of each diagonal - so here you have 4 triangles.
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Answer:
When you have four non-collinear points and you join them together you can construct a quadrangle with these 4 points. Draw the diagonals and see what you get. You get 2 triangles on each side of each diagonal - so here you have 4 triangles.
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