144 is a square number, not a triangular number.
1, the first triangular number, is also a square.
It is 13 squared, but it's not a triangular number
A number, t, is a triangular number if (1 + 8t) is a square of an odd number.
69
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.
144 is a square number, not a triangular number.
36 is a triangular number, Square number and also a Consecutive number.
1, the first triangular number, is also a square.
It is 13 squared, but it's not a triangular number
1 is a triangular and square number, and it is less than 60.
A number, t, is a triangular number if (1 + 8t) is a square of an odd number.
No - but it is a square number. 1,3,6,10,15,21 & 28 are all triangular numbers. 1,4,9,16,25 & 36 are all square numbers.
Neither.
69
No, it is just a suare number
There are an many triangular numbers that are also square numbers. Simply put, the sum of two consecutive triangular number equals a square number. Examples include 1 and 36.