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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.

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.

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

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can I have the awnser

28 and 15

9 + 16 = 25

Basically a perfect square is a number like 81 or 100. When these numbers are square rooted, they equal whole numbers like 9 or 10. An imperfect square is a number that when is square rooted equals and repeating decimal, like 29 when square rooted equals 5.385164807134504... (Note: Both even and odd number can be imperfect or perfect squares.)

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Related questions

One relationship is that the sum of the nth and the previous triangular numbers is equal to the nth square number.That isT(n-1) + T(n) = S(n)where T(n) is the nth triangular number and S(n) is the nth square number.

Thre are infinitely many solutions. The smalest set with two different triangular number adding to another is 6 + 15 = 21

Two equal numbers mutiplied is the square root of that number. The answer is 14.002856.

can I have the awnser

A square pyramid has a base with 4 equal sides and triangular faces.

In Mathematics, a square number is an integer that is the square of another integer. It is equal to a positive whole number multiplied by itself. For example, 9 is a square number because it is equal to 3x3.

yes

2 and 2

The product of two negative numbers is a positive number. Ergo, the product of the square of a number is equal to the square of its negative equivalent.

28 and 15

The tenth triangular number is equal to (10 x 11) / 2 = 55.

The sixteenth triangular number is equal to (16 x 17)/2 = 136

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