Up Your Score SAT, 2018-2019 Edition The Underground Guide to Outsmarting The Test

Voilà!  The answer: 30° +   55° =   85° =   x.

3 What is the measure of angle x? (A Star Trek cosplayer needs to

know.)

The 40° angle is inscribed, so the arc shown is 80°, as is, therefore, central angle
x.
Answer: 80°

4 Given this parallelgram, what is the measure of angle x?