AB=9a BC=12a AC=42
I don't understand how to work this out if I don't have say 3y+1.
If the points are in a aline, then I expect
AB + BC = Ac
So,
9a + 12a = 42
21a = 42
a = 2
Now you can figure out the lengths AB and BC
I don't understand how to work this out if I don't have say 3y+1.
AB + BC = Ac
So,
9a + 12a = 42
21a = 42
a = 2
Now you can figure out the lengths AB and BC