Circles- Angles inside and outside

Front

What is the formula to find an angle inside a circle?

Back

(1/2)(arc + arc)

Front

What is the measure of arc AD if it is given as 137 degrees?

Back

137 degrees

Front

Which angle represents the angle inside the circle in a given diagram?

Back

Angle D

Front

What is the measure of arc WYZ if it is given as 231 degrees?

Back

231 degrees

Front

What is the measure of arc KL if it is given as 108 degrees?

Back

108 degrees

Front

What is the relationship between the angles and arcs in a circle?

Back

The measure of an angle formed by two chords is equal to half the sum of the measures of the arcs intercepted by the chords.

Front

How do you find the angle outside a circle formed by two secants?

Back

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

Front

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

Back

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

Front

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

Back

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

Front

Define a central angle in a circle.

Back

A central angle is an angle whose vertex is at the center of the circle and whose sides are radii that intersect the circle.