Answer:
n = 6
Step-by-step explanation:
the formula for interior angle is ( n-2)
but we given the measure of one angle, so solve
720 = (n - 2)180
720/180 = (n - 2)
4 = (n - 2)
combine the like terms
4 + 2 =n
6 = n
There’s two ways to substitute, but i think you mean if you know x but don’t know y. if that is true, then yes use substitution
Answer:
SAS
By using. Side angle side
Answer:
72
Step-by-step explanation:
There's a constant trend of x-8. so subtract 8 from 80 and you get 72.
