Question

What is the measure of the smallest angle?

Answer 1

Explanation:

let the middle angle=x

then

`x+(x)/(2)+90=180\\2x+x+180=360\\3x=360-180=180\\x=180/3=60\\(x)/(2)=30`

so angles are 30°,60°,90°

smallest angle=30°

Answer 2

Answer: 45 degrees.

Explanation:

The middle angle of a right angle is 90 degrees and half of the 90 degrees is 45.