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It actually depends if it's even or odd. So with odd numbers you take away one then divide by two then times it by the number you started with and you have your answer. I'll show you.
e.g 13-1=12/2=6 13x6=78
With even numbers its almost the same thing but all you do is divide by two again and times by the number you started with and your answer is there.
22/2=11 22x11=242
What else can I help you with?
What is the formula for triangular numbers?
The Nth triangular number is calculated by: N(N + 1) -------- 2 Hope this is useful!
Formula of triangular numbers?
The nth triangular number is 0.5*n*(n+1)
Could 36 be a triangular number?
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
What is the 24th triangular number?
The 24th triangular number is 300. This was found using the formula: n(n+1) divided by 2
What is the formula to find out a triangular number?
1234 and you will see its triagular
What is the formula of a triangular prism?
What is the formula for a triangular prism
How do you check if a number is a triangular number?
you need to use this formula: n(n+1) T=--------- 2 So number times (number + 1) divided by 2. If the number you get is the same number as n its a triangular number. if it isn't well it isn't a triangular number.
The 8th triangular number is 36 what is the 7th triangular number?
The formula for the nth triangular number is n(n+1)/2. If the 8th triangular number is 36, then we can set up the equation 8(8+1)/2 = 36. Solving for n, we get n = 7. Therefore, the 7th triangular number is 7(7+1)/2 = 28.
What is the xth triangular number?
The formula for the nth triangular number is n(n+1)/2. Therefore, the fourth triangular number is equal to 4 x (4+1) / 2 = (4 x 5) / 2 = 10. The fiftieth triangular number is equal to 50 x (50+1) / 2 = (50 x 51) / 2 = 1275.
Is 63 a Triangular Number?
Is 63 a triangular number I think it is a triangular number.
What is a number that is a triangular number and a triangular number?
013
Is 100 a triangular number?
no it is not a triangular number
