Answer:
x = 65
A = 73
B = 62
Step-by-step explanation:
To find the measure of angles we first need to find the value of x.
The sum of interior angles in a triangle is equal to 180:
x - 3 + x + 8 + 45 = 180 add like terms
2x + 50 = 180 subtract 50 from both sides
2x = 130 divide both sides by 2
x = 65
Now onto the angles:
B,
x - 3 = 62
A,
x + 8 = 73
