They multiply each set of numbers by 4.
In this problem, we need to find the measures of all three angles in a triangle.
Let the angles be represented as p, q, and r.
Given that the measure of angle q is one-third of angle p, we have:

The measure of angle r represents the difference between angles p and q, which gives us:
(Equation 1)
Applying the triangle angle sum property, it is known that the cumulative angle measure in a triangle is 
p+q+r=
Substituting the value for r from Equation 1, we find:
p+q+p-q=
2p=
Thus, p=
Since 

Since angle r is equal to p-q, we can conclude:
r =
Assuming one radius of the circle intersects at the point (1,0), the formula for calculating straight-line distance is as follows: