Question

What is the value of x?
Enter your answer In the box
X =

Answer 1

Interior Angles in a triangle add up to 180 so I added the values I know and minused it by 180

55+ 80 = 135

180-135 = 45

So x = 45

Answer 2

A+B+C=180

55+80+x=180

135+x=180

x=180-135

x=45