The following figure is given. Name the measurement of the angle that can be added to the sum of these three angles to yield a right angle.
A. 8
B. 9
C. 11
D. 7
E. 10
An obtuse angle measures 130 degrees. Which is the difference between this angle and a right angle?
A. 30 degrees
B. 40 degrees
C. 50 degrees
D. 60 degrees