3/24: NEW Circles, Arcs, and Angles #1 (checked)

Front

This is a picture of ___________.

Back

Radius

Front

A ____ is a line, ray, or segment that intersects a circle at two points.

Back

Secant

Front

What is the measure of angle ABC?

Back

90 degrees

Front

What is the measure of arc KL?

Back

108 degrees

Front

Find a and b: a=74 degrees, b=93 degrees; a=93 degrees, b=74 degrees; a=87 degrees, b=106 degrees; a=106 degrees, b=87 degrees.

Back

a=93 degrees, b=74 degrees

Front

What is the definition of a chord in a circle?

Back

A chord is a line segment with both endpoints on the circle.

Front

What is the definition of a diameter?

Back

A diameter is a chord that passes through the center of the circle.

Front

What is an inscribed angle?

Back

An inscribed angle is formed by two chords in a circle which have a common endpoint.

Front

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

Back

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

Front

What is a tangent to a circle?

Back

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