9514 1404 393
Answer:
(x, y, z) = (2, 31°, 60°)
Step-by-step explanation:
Opposite sides have the same length, so ...
x + 8 = 10
x = 2 . . . . . . . . subtract 8
__
Consecutive angles are supplementary, so ...
(3y +10°) +(2y +15°) = 180°
5y = 155° . . . . . . subtract 25°
y = 31° . . . . . . . .divide by 5
__
Opposite angles are congruent, so ...
z +17° = 2y +15°
z = 2y -2° = 2(31°) -2°
z = 60°
