Angle CBA is the right name because it's in between C and A
Answer:
8 maybe
Step-by-step explanation:
My guess but if it is not Sorry
The constant of proportionality is for every 1 x, there is 0.25 y. y = 0.25, and on a graph, x is always the "1." Since x is worth 1, y must be worth 0.25.
Notice the point R
is a vertex between two "vertical angles"

those two folks are also the same
so now, we have the left triangle has angle P equals to angle T on the other triangle
we also have the side on the left triangle of PR equals the side of TR on the other triangle, and those two verticals angles are equal to each other
does ASA ring a bell?
The most precise is 4.00 because that is equal to 10.16 cm and that is the most closes to an exact measurment.