1) How many triangles will be formed by 13 matchsticks? 2) How many matchsticks will be needed to form 7 triangles?

John Castleman asked Jul 20, 2022

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27 votes

1) How many triangles will be formed by 13 matchsticks?

2) How many matchsticks will be needed to form 7 triangles?

John Castleman asked Jul 20, 2022

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12 votes

1) 4 and one extra

2) 21

Asafbar answered Jul 26, 2022

2.4k points

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