how many equal line segments are needed to make a row of 25 triangles

7 answers

How many sides does a triangle have? If they are not alternately inverted, multiply by 25.

If they are alternately inverted, 3 for the first triangle and 2 for the remaining ones.
How many equal line segments are needed to make a line of 30 triangles
51 equal line segments
how many equal lines segmants are needed to make a row of 6 triangles
18
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