Angles and Segments intersecting Circles Review

Front

What is the measure of a full circle in degrees?

Back

360 degrees.

Front

What is the measure of a semicircle in degrees?

Back

180 degrees.

Front

If two angles are supplementary, what is the sum of their measures?

Back

180 degrees.

Front

What is the relationship between the angles formed when two lines intersect?

Back

The opposite angles are equal, and the adjacent angles are supplementary.

Front

What is the measure of angle 1 if angle 2 is 120 degrees and they are supplementary?

Back

Angle 1 is 60 degrees.

Front

What is the formula to find the measure of an inscribed angle?

Back

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

Front

If angle A is 30 degrees, what is the measure of the arc it intercepts?

Back

The intercepted arc measures 60 degrees.

Front

What is the relationship between the angles formed by a tangent and a chord?

Back

The angle formed is equal to half the measure of the intercepted arc.

Front

What is the formula for the sum of the interior angles of a polygon?

Back

(n-2) × 180 degrees, where n is the number of sides.

Front

What is the definition of a tangent to a circle?

Back

A tangent is a line that touches the circle at exactly one point.