The measure of angle EAC is equivalent to 50 degrees.
Answer:

Step-by-step explanation:
We know that

Given :

So 4 is the opposite side of theta.

We use the Pythagorean theorem to find for the adjacent side.
If you are multiplying fractions it doesn't matter if there are different denominators because you multiply straight across.
The first question is the second answer
Answer:
same side interior
Step-by-step explanation: