April 2021 brain puzzler solution

April 26, 2021 mathconfidence Leave a comment

There are a total of 18 triangles:

9
3 small triangles ABC ACD ADE
3 medium triangles AFG AGH AHI
3 large triangles AJK AKL ALM

also 6 more
triangles
ABD ACE
AFH AGI
AJL AKM

3 more:
ABE AFI AJM

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Math Confidence by Robin the Math Lady

April 2021 brain puzzler solution

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