Angles and segments of a circle Flashcard

Front

What is the measure of arc AC if the measure of arc ABC is 210°?

Back

150°

Front

What is the measure of an angle that corresponds to an arc of 140°?

Back

140°

Front

What is the formula for finding the length of a segment in a circle?

Back

Length = r * θ (in radians)

Front

If x + 2 = 6, what is the value of x?

Back

4

Front

If 3x - 1 = 62, what is the value of x?

Back

21

Front

What is the relationship between the central angle and the arc length in a circle?

Back

The central angle in degrees is equal to the arc length divided by the radius.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr

Front

What is the measure of a semicircle?

Back

180°

Front

If the measure of arc AB is 90°, what is the measure of the corresponding central angle?

Back

90°

Front

What is the relationship between inscribed angles and their intercepted arcs?

Back

The inscribed angle is half the measure of its intercepted arc.