05 May 2017

512. The 7 small triangles

Easy Medium Hard Extreme

Shown above are 3 triangles of size A and 1 small triangle of size B.

ADD 3 matchsticks to create 7 small triangles of size B and 3 of size A. The full length of each matchstick must form part of a triangle or triangles. All triangles don't have to be flat on the surface.

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