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 'arc' in the context of a circle.

Back

An arc is a portion of the circumference of a circle.

Front

What is the relationship between the angle formed by a tangent and a chord through the point of contact?

Back

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

Front

How do you find the measure of an inscribed angle in a circle?

Back

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

Front

What is the equation to find 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

What is the measure of an angle formed by two tangents drawn from a point outside the circle?

Back

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

Front

If the measure of arc AB is 100 degrees, what is the measure of the inscribed angle that intercepts arc AB?

Back

The measure of the inscribed angle is 50 degrees.

Front

What is the relationship between the central angle and the arc it intercepts?

Back

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

Front

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

Back

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