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23-03-2021
Mathematics

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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 be needed to form 7 triangles class=

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23-03-2021

1) 4 and one extra

2) 21

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