Exploring Angles and the Angle Addition Postulate

What is the common endpoint of two rays forming an angle called?

Which of the following is NOT a way to name an angle?

What is the approximate angle formed by holding your thumb at arm's length?

How many degrees is an outstretched hand at arm's length approximately?

What is the classification of an angle that is exactly 90 degrees?

Which angle classification is greater than 90 degrees but less than 180 degrees?

According to the angle addition postulate, if angle AOB is 30 degrees and angle BOC is 60 degrees, what is the measure of angle AOC?

If angle DEAC is 53 degrees and the all-inclusive angle is 64 degrees, what is the measure of angle CAB?

In the equation 8x - 6 + 2x + 11 = 20, what is the value of x?

If angle 1 is 5x + 6 and angle 2 is 3x + 9, and the all-inclusive angle is 11x - 6, what is the measure of angle 1 when x = 7?