Answer:
Angle R is an Angle
Step-by-step explanation:
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0 would be on the top, hope this helps
Answer:

Step-by-step explanation:
Since our foci are located on the x-axis, then our major axis is going to be the horizontal transverse axis of the hyperbola:
<u>Formula for hyperbola with horizontal transverse axis centered at origin</u>
- <u />

- Directrices ->

- Foci ->
where 

Since we are given our directrices of
and foci of
, then we can set up the directrices equation to solve for
:

Now we can determine
to complete our equation for the hyperbola:

Therefore, our equation for our hyperbola is 
The triangle angle sum theorem states that the 3 angles in the triangle must equal 180 degrees.