Consecutive numbers differ by one. So, if
is the first, the three numbers are

The sum of the first and third integer is

Answer:
30 ( I think so)
Step-by-step explanation:
Well, the total measurement 4 a triangle is 90. So 60 and 60 is 120 so it should be 30. If not I am sorry for being wrong.
Answer:
I don't know nothing about this lol...
Step-by-step explanation: