Angles Inside and Outside Circles

Front

What is the measure of an angle formed by two chords that intersect inside a circle?

Back

The measure of the angle is equal to half the sum of the measures of the arcs intercepted by the angle.

Front

What is the formula to find the measure of an angle formed by two secants that intersect outside a circle?

Back

The measure of the angle is equal to half the difference of the measures of the intercepted arcs.

Front

Define an inscribed angle in a circle.

Back

An inscribed angle is formed by two chords in a circle which have a common endpoint. The vertex of the angle is on the circle.

Front

What is the relationship between an inscribed angle and the arc it intercepts?

Back

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

Front

How do you find the measure of an angle formed by a tangent and a chord?

Back

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

Front

What is the measure of an angle formed by two tangents that intersect outside a circle?

Back

The measure of the angle is equal to half the difference of the measures of the intercepted arcs.

Front

What is the formula for finding the measure of an angle formed by two intersecting chords?

Back

The measure of the angle is equal to half the sum of the measures of the arcs created by the chords.

Front

If the measure of arc AB is 140 degrees, what is the measure of the angle formed by the chords that intercept arc AB?

Back

The measure of the angle is 70 degrees.

Front

What is the measure of the arc intercepted by an inscribed angle of 30 degrees?

Back

The measure of the intercepted arc is 60 degrees.

Front

How do you calculate the measure of an angle formed by two secants that intersect outside the circle?

Back

Use the formula: Angle = 1/2 (larger arc - smaller arc).