8,9,5,7,2 and 1
The first six triangular numbers are : 1,3,6,10,15,21. However, sometimes the first triangular number is regarded as 0 (zero) so you then have 0,1,3,6,10,15 as the first six triangular numbers.
1, 3, 6, 10, 15, 21
The sum of the first six positive numbers (1 to 6) is 21.
Triangluar numbers or triangle numbers are numbers formed from the summation of all the numbers smaller than them. The first few triangle numbers are 1,3,6,10,15,21... If you think of a pyramid with a base of two blocks, and one on top, there are three blocks. If you add a base of three to that pyramid, you have six blocks. Then ten, and fifteen and so on. That is why they are called Triangle numbers.
1, 2, 3, 4, 5 & 6.
The first six triangular numbers are : 1,3,6,10,15,21. However, sometimes the first triangular number is regarded as 0 (zero) so you then have 0,1,3,6,10,15 as the first six triangular numbers.
1, 3, 6, 10, 15, 21
The first six triangular numbers are 1, 3, 6, 10, 15 and 21.
6 is a triangular number, but 9 is not.
Six.
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%.
The sum of the first six odd numbers is 36.
The sum of the first six positive numbers (1 to 6) is 21.
The sum of the first six counting numbers (1-6) is 19.
The first six prime numbers:- 2, 3, 5, 7, 11 and 13
A triangular prism has six vertices. A triangular pyramid has four vertices.
Triangluar numbers or triangle numbers are numbers formed from the summation of all the numbers smaller than them. The first few triangle numbers are 1,3,6,10,15,21... If you think of a pyramid with a base of two blocks, and one on top, there are three blocks. If you add a base of three to that pyramid, you have six blocks. Then ten, and fifteen and so on. That is why they are called Triangle numbers.