Answer:
Step-by-step explanation:
False. They may have some that are the same, but not all.
Every point in the unit circle is identified either by its coordinates
or by the angle it forms with the x-axis,
.
The trigonometric functions associate with every angle
and the correspondant
coordinates the two values

This procedure can be done for every angle
, so you don't have to work with acute angles only.
Answer:

Step-by-step explanation:
The graph is in the image

A' (1,4)
B' (5,8)
C' (5,4)
D' (4,2)