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

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

1) How many triangles will be formed by 13 matchsticks? 2) How many matchsticks will-example-1

1 Answer

4 votes
1) 4 and one extra

2) 21
User Beloitdavisja
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