Answer:
45°
135°
Step-by-step explanation:
Let the measure of one angle be x
So, measure of its supplementary angle = 3x

The length is 0.5 and your welcome the explanation is long but this is the answer
They are equal because you can measure the percentage as a decimal with a maximum of 1.
Answer:
hard
Step-by-step explanation:
I don't know because I have never learnt these things