Answer:
B
Step-by-step explanation:
180 - y + z = x {Exterior angle property}
z = x - 180 + y
z = x + y - 180
48 degrees. 43 degrees - (-5 degrees) = 48 degrees
Answer:
x=20
Step-by-step explanation:
Because all angles of a triangle add up to 180, by adding all the values that your given and setting it equal to 180, you get the value of x.
3x+2x+20+4x-20=180
9x=180
x=20