Question

5.
Which of the following are triangular numbers?
(a) 6
(b) 10
(c) 65
(d)91

please me the solution also ​

Answer 1

Answer:

answer is

Step-by-step explanation:

6 is the triangular number

Answer 2

Answer:

except 65 all numbers are triangular

using this formula u can find all numbers.

I hope that this will help you