Triangle game!

Geometry Level 2

How many triangles are there in the picture above?

7 8 4 6 5

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1 solution

Edwin Gray
Sep 23, 2018

Label the intersection points A at the top, D at lower left, F at lower right, E between D and F, B between A and D, C between A and F, and G between A and E. Then the triangles are: ABG, ACG, ABC, ADE, AEF, ADF. Ed Gray

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