what is pentagonal triangular number
Answers
Answered by
2
Step-by-step explanation:
A pentagonal number is a figurate number that extends the concept of triangular and square numbers to the pentagon, but, unlike the first two, the patterns involved in the construction of pentagonal numbers are not rotationally symmetrical. ... The nth pentagonal number is one third of the 3n-1th triangular number
brainliest pls
Similar questions