Geometry Circles Circumscribed

A line, ray, or segment that is tangent to two circles in the same plane

• Common Tangent

• Radian

• Chord

• Secant

A line that intersects a circle at exactly two points

• Tangent

• Secant

• Diameter

• Circumference

Arcs in a circle that have exactly one point in common

• Adjacent Arcs

• Intercepted Arcs

• Congruent Arcs

• Centripetal Arcs

_____ Arcs – Arcs in the same circle or congruent circles that have the same measure

An angle or shape that is inside a circle and has all vertices on the is said to be a...

• Acute Angle

• Obtuse Angle

• Right Angle

• Inscribed Angle

Line BJ is a ______ of the circle.

• radius

• diameter

• tangent

• chord

What is a central angle?

• An angle formed by 2 chords and its vertex lies on the circle.

• An angle formed by two radii whose vertex is the center of the circle.

• An angle that measures 90 degrees

• An angle that intersects the circle at a tangent

If a radius is drawn to a point of tangency, what angle is formed between the radius and the tangent?

• 45 degrees

• 90 degrees

• 30 degrees

• 60 degrees

If a quadrilateral is inscribed in a circle, then opposite angles are _____.

• Complementary

• Equal

• Supplementary

• Adjacent

What is the measure of an angle formed by two chords?

• Half the sum of the measures of the intercepted arcs

• Equal to the measure of the smaller intercepted arc

• Equal to the measure of the larger intercepted arc

• Twice the sum of the measures of the intercepted arcs