Answer:
x = 98
Step-by-step explanation:
x = 53 + 45
note: the measure of an ext. angle of a triangle is equal to the sum of the two non-adjacent interior angles.
98
sum of angle in this triangle = 180
180-(53+45) = 82
so, the third angle is 82 degrees.
moving forward, the third angle (82 degrees) and angle x are straight line angle,
therefore, x + 82 = 180
x =180-82
x=98
