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Is 49 a triangular number?
No. ---- The nth triangular number (n must be a whole number > 0) is given by: tn = 1/2 n(n+1) Testing for 49: 1/2 n(n+1) = 49 → n2 + n - 98 = 0 → n = (-1 ± √393)/2 but 393 is not a square number, so n cannot be a whole number which it must be for a triangular number; thus 49 is not a triangular number.
Is 144 a triangular number?
144 is a square number, not a triangular number.
What number under 50 is a square and triangular number?
1, the first triangular number, is also a square.
Is 169 a square number or a triangular number?
It is 13 squared, but it's not a triangular number
How do you find out if a number is a Triangular number?
A number, t, is a triangular number if (1 + 8t) is a square of an odd number.
Is 49 a triangular number?
No. ---- The nth triangular number (n must be a whole number > 0) is given by: tn = 1/2 n(n+1) Testing for 49: 1/2 n(n+1) = 49 → n2 + n - 98 = 0 → n = (-1 ± √393)/2 but 393 is not a square number, so n cannot be a whole number which it must be for a triangular number; thus 49 is not a triangular number.
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.
Is 144 a triangular number?
144 is a square number, not a triangular number.
Is 36 a triangular number?
36 is a triangular number, Square number and also a Consecutive number.
What number under 50 is a square and triangular number?
1, the first triangular number, is also a square.
Is 169 a square number or a triangular number?
It is 13 squared, but it's not a triangular number
What is a number less than 60 which is triangular and a square number?
1 is a triangular and square number, and it is less than 60.
How do you find out if a number is a Triangular number?
A number, t, is a triangular number if (1 + 8t) is a square of an odd number.
Is 25 a triangular 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.
Is 49 a square number?
Yes, 49 is a square number because it can be expressed as the square of the whole number 7 (7 x 7 = 49). In mathematics, a square number is the result of multiplying an integer by itself. In this case, 7 is the integer, and squaring it gives us the square number 49.
Is 22 a square number and triangular number?
Neither.
What are the one square number and triangular number?
69
