9514 1404 393
Answer:
171° (angle) and 9° (supplement)
Step-by-step explanation:
If 'a' represents the measure of the angle then ...
a = 19(180 -a) . . . . . the angle is 19 times its supplement
20a = 19(180) . . . . add 19a
a = 19(9) . . . . . . . . divide by 20
a = 171 . . . degrees (the angle)
180-a = 9 . . . degrees (the supplement)
