Answer:
x =72
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees
x+77+31 = 180
Combine like terms
x + 108 = 180
Subtract 108 from each side
x+108-108 = 180-108
x =72
Answer:
5
Step-by-step explanation:
you have a multiple added
1 right angle because if it has 2 then the sum of the angles is already 180 wihtout the 3rd angle.
So, first you need to think 'what is the highest degree?'
Then you need to figure out how many terms you have
polynomial- four or more terms
trinomial- three terms
binomial- two terms
