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Is 4 a triangular number?
no No it is not. The first 5 triangular numbers are: 1, 3, 6, 10, 15
Triagular numbers are created by adding consecutive counting numbers?
triangular numbers are created when all numbers are added for example: To find the 5 triangular number (1+2+3+4+5).
Are there any triangular numbers that are square numbers?
Yes. 36 is a triangular number, because it is 1+2+3+4+5+6+7+8, and it is also a square number, because 36=6x6. 1 is another square number that is traditionally considered to be triangular.
Numbers 1 3 6 10 15 pascals triangle?
Well...the fifth row is 1 5 10 10 5 1...but to possibley solve a problem you need a formula for example (x+y)^2 * * * * * No, these are triangular numbers. The formula for the nth term is t(n) = n(n+1)/2 They are called triangular numbers because if you make one mark on the first line, two marks on the second, three on the third, etc you will generate these numbers and with each line the marks form a triangular shape.
What math facts about the number 21?
It is a triangular number In Roman numerals = XXI It is the sun of the first 6 numbers (1+2+3+4+5+6=21)
