Answer:
1/5
Step-by-step explanation:
Each point on the black trapezoid is 5 times further the origin than the green trapezoid. You'd have a scale factor of 1/5 to convert the black trapezoid into the green one
so it goes from 10 on the side to 2, so you can do 2/10 or 1/5 scale
hope this helps :)
