Triangle numbers or triangular numbers are those numbers that can form an equilateral triangle when counting the objects. The first five triangular numbers are: 1, 3, 6, 10, 15.
No. The first few triangular numbers are 1, 3, 6, 10, 15, 21, 28, ...
1, 3, 6, 10, 15, 21
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.
6 and 10 are triangular numbers that make 16.
Triangle numbers or triangular numbers are those numbers that can form an equilateral triangle when counting the objects. The first five triangular numbers are: 1, 3, 6, 10, 15.
Because it is ! The first 10 triangular numbers are... 1,3,6,10,15,21,28,36,45 & 55
no No it is not. The first 5 triangular numbers are: 1, 3, 6, 10, 15
The first twelve triangular numbers are: 1 3 6 10 15 21 28 36 45 55 66 78
No. The first few triangular numbers are 1, 3, 6, 10, 15, 21, 28, ...
The first six triangular numbers are 1, 3, 6, 10, 15 and 21.
1, 3, 6, 10, 15, 21
1, 3, 6, 10, 15
1+3+6+10 =20
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.
6 and 10 are triangular numbers that make 16.
32 is not a triangular number. The first few triangular numbers are 1, 3, 6, 10, 15, 21, 28, 36, 45, ...