45
There are 9 edges in a triangular prism, hope this helped.
28 is a triangular number because it is the sum of the integers 1 through 7. The next larger triangular number is 36, the sum of the integers 1 through 8. Therefore 26 is not a triangular number. Notice 28 = 7 times 8 divided by two and 36 = 8 times 9 divided by two. So what's the next triangular number??
Is 63 a triangular number I think it is a triangular number.
013
Only 9 and 15 are odd so the rest can be rejected. 9 is not a triangular number so only 15 is odd and a triangular number.
6 is a triangular number, but 9 is not.
45
36 is a triangular number. The formula for the nth triangular number is, n(n + 1)/2. So, 36 is the 8th triangular number : 8 x 9/2 = 36
There are 9 edges in a triangular prism, hope this helped.
9
Yes, sum of integers 1 - 9.
28 is a triangular number because it is the sum of the integers 1 through 7. The next larger triangular number is 36, the sum of the integers 1 through 8. Therefore 26 is not a triangular number. Notice 28 = 7 times 8 divided by two and 36 = 8 times 9 divided by two. So what's the next triangular number??
Is 63 a triangular number I think it is a triangular number.
013
no it is not a triangular number
Decimal triangular number it is