
<u>Step-by-step explanation:</u>

Answer:
Step-by-step explanation:
4:12= 1:3
Answer: 6 units
Step-by-step explanation:
I know that in a triangle, there's two angles that have equal measures, then the sides opposite to them are equal in length. Thus, the length of side AB is 6 units.
A. 6 and b. 12. You take 3.6 and divide it by .6 then multiply by 2 for the second answer
9/20
the numbers that would satisfy this are 15,16,17,18,19,20, 1,2,3
so there are 9/20