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# When you add two triangular numbers why do they equal to a square number?

They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.

They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.

They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.

They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number. Study guides

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## A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number. They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.

They don't necesarily,

3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.  Earn +20 pts  