
now, recall, the exercise is assuming you're using π = 3.14.
Answer:
See explanation
Step-by-step explanation:
Plot the solution sets to both inequalities.
1. For the inequality
First, plot the dotted line
(dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

so the origin does not belong to the needed part. Shade the part, which does not include origin.
2. For the inequality
First, plot the dotted line
(dotted because sign is without notion "or equal to"), then choose correct part by substitution coordinates of the origin.

so the origin does not belong to the needed part. Shade the part, which does not include origin.
3. Find the common region of these two shaded parts - this is the solution to the system of two inequalities.
Answer:

Step-by-step explanation:
Given



Required
Determine the value of 
Since,
is counter clockwise from x axis;
The relationship between
,
and R is

Substitute values for Rx and R


Take arccos of both sides


<em>(</em><em>Approximated)</em>
I did the math and (6,26) is the correct answer.