Answer: 45 degrees.
Step-by-step explanation:
The middle angle of a right angle is 90 degrees and half of the 90 degrees is 45.
Answer:
let the middle angle=x
then
[tex]x+\frac{x}{2}+90=180\\2x+x+180=360\\3x=360-180=180\\x=180/3=60\\\frac{x}{2}=30[/tex]
so angles are 30°,60°,90°
smallest angle=30°
