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Earn +20 ptsQ: First six triangular numbers
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What are the first 6 triangle numbers?
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.
What are the First six triangular numbers?
1, 3, 6, 10, 15, 21
What is the sum of the first six positive numbers?
The sum of the first six positive numbers (1 to 6) is 21.
What does triangular number mean?
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.
What are the first six counting numbers?
1, 2, 3, 4, 5 & 6.
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