Answer:
35,45,100 Degrees
Step-by-step explanation:
We know that in a triangle, each angle measure is proportional to its opposite length. Therefore, let us find one "unit" of angle measure in relation to the opposite side lengths: [tex]7+9+20=36[/tex]. We can use this by: [tex]\frac{180}{36}=5[/tex] to find that each "unit" is 5 degrees. Therefore, we multiply [tex]7*5=35,9*5=45,20*5=100[/tex] to find 35,45,100 Degrees.