IM 2: Angles Inside & Outside Circle

Front

What is a tangent line in relation to a circle?

Back

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

Front

What is a secant line in relation to a circle?

Back

A secant line is a straight line that intersects a circle at exactly two points.

Front

How do you calculate the measure of an angle formed by a tangent and a secant intersecting outside a circle?

Back

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

Front

If minor arc AC = 72° and minor arc CD = 132°, what is the measure of ∠ ABD?

Back

30°

Front

What is the relationship between the angles formed by two secants intersecting outside a circle?

Back

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

Front

If minor arc AC = 96°, what is the measure of ∠ ABC?

Back

84°

Front

What is the formula to find the measure of an angle formed by two tangents intersecting outside a circle?

Back

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

Front

What is the measure of an angle formed by two secants intersecting inside a circle?

Back

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

Front

If minor arc AB = 110° and minor arc CD = 234°, what is the measure of the angle formed by the secants?

Back

The measure of the angle is 62°.

Front

What is the measure of an angle formed by a tangent and a chord through the point of contact?

Back

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