Let's complete the statements based on the given diagram:

1. mAngleA = 27 because it is vertical to the 27-degree angle.

2. mAngleB = 93 degrees because it is vertical to the 93-degree angle.

3. mAngleC can be found by using the property that the sum of angles on a straight line (180 degrees) is equal to the sum of angles on the same side of the transversal. So, mAngleC = 180 - 93 = 87 degrees.

4. At the intersection of lines p, r, and s, clockwise from top left:
- The angle at the top left corner is mAngleA = 27 degrees (as mentioned earlier).
- The angle at the bottom left corner is 93 degrees.
- The angle at the bottom right corner is mAngleC = 87 degrees (as calculated earlier).
- The angle at the top right corner is mAngleB = 93 degrees (as mentioned earlier).

5. At the intersection of lines q and s:
- The angle at the top left corner is 27 degrees.
- The angle at the bottom left corner is 60 degrees.
- The angle at the bottom right corner is 180 - (27 + 60) = 93 degrees (because the sum of angles on a straight line is 180 degrees).

6. At the intersection of lines r and q:
- The angle at the top left corner is 27 degrees (as mentioned earlier).
- The angle at the bottom left corner is 180 - 27 = 153 degrees (because the sum of angles on a straight line is 180 degrees).

Finally, the sum of the measures of angles A, B, and C is:
mAngleA + mAngleB + mAngleC = 27 + 93 + 87 = 207 degrees.