answersLogoWhite

0

The nth triangular number is n(n+1)/2

User Avatar

Wiki User

9y ago

What else can I help you with?

Related Questions

Number of faces on a triangular prism?

what is the number faces does a triangular pyramid have


Are nine and six triangular numbers?

6 is a triangular number, but 9 is not.


Is 6 a triangular number?

Yes It Is


What is the 3rd triangular number?

6


Is 32 a triangular number?

32 is not a triangular number. The first few triangular numbers are 1, 3, 6, 10, 15, 21, 28, 36, 45, ...


What is the number of edges of triangular pyramid?

6


What is the number of vertices for a triangular prism?

6 vertices


In a triangular prism what is the ratio of the number of vertices to the number of edges?

In a triangular prism, there are 6 vertices and 9 edges. The ratio of the number of vertices to the number of edges is therefore 6:9, which can be simplified to 2:3.


Is 4 a triangular number?

no No it is not. The first 5 triangular numbers are: 1, 3, 6, 10, 15


What is the chance of rolling a triangular number on a die?

A triangular number is a number that can be arranged in the shape of an equilateral triangle, and the first few triangular numbers are 1, 3, 6, 10, etc. When rolling a standard six-sided die, the only triangular numbers you can roll are 1 and 3. Therefore, there are 2 favorable outcomes out of 6 possible outcomes, giving you a probability of rolling a triangular number of 2/6, which simplifies to 1/3 or approximately 33.33%.


Is 9 a triangular number?

yes it is!EDIT: No, it is not.


How many select committees in the house of representatives are there?

The numbers 1, 3, 6, 10, 15, 21, 28, . . . are know as triangular numbers. Find the greatest triangular number less than 5000.