A box contains a collection of triangular and square tiles. There are 25 tiles in the box, containing 84 edges total. How many square tiles are there in the box?

Question

Mathematics

Makayla Castillo

16 April, 06:57

A box contains a collection of triangular and square tiles. There are 25 tiles in the box, containing 84 edges total. How many square tiles are there in the box?

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Kadence · Answer 1

Triangular and square tiles all the 3 sides - the difference is that square tiles have one side more!

when we first think about the 3 sides: the 25 tiles must then have at least 25*3=75 sides.

But they have 84. what is the difference? there are 84-75=9 extra sides, which means that there are 9 square tiles.