we know that
The internal angles of the triangle
are
Angles



The internal angles of the triangle
are
Angles



therefore
the answer is

Try doing A, 2/3 Hopefully it helps you, I'm not good with fractions.
Answer:
It’s 60 because one cube equal 12
And like there is 5 cubes it will be 12x5
Which equals 60
Step-by-step explanation:
I believe your answer is 145