Answer:
Step-by-step explanation:
Answer:
a=15x; b=8x; c=13x
180°=a+b+c=15x+8x+13x=36x
=> x=180÷36=5
=> a=15×5=75°; b=8×5=40°; c=13×5=65°
Answer:
5 and 7.
Step-by-step explanation:
Supplementary angles are angles that have a sum of 180°.
130° + 50° = 180°
120° + 60° = 180°
It's 5 because the fraction when you divide. 23.