Question

What’s the correct answer for this?

Answer 1

As you can see in the picture, this is 6-8-10 right triangle.

One of angles is 90° so you can find others

$\tan( \alpha ) = \frac{opp}{adj}$

8/6 = 4/3

6/8= 3/4

tan-1(4/3) = 36.9 °

tan-1(3/4) = 53.1 °

tan<R= 53.1 °

Hope this helps ^-^