Question

How do I solve the first one?

Answer 1

Answer:

49 Degrees

Step-by-step explanation:

The teacher must have forgotten to add the degrees symbol on the number 13 so it must have confused you.

Step 1:

Add 13 and 28 together.

Step 2:

Since it is a Right-Angled triangle, we do 90-(13+28)

Step 3:

We get an answer of 49 Degrees.

Hope that makes sense!