HG Chapter 6 Review

Front

What is the value of x if the lines that appear to be tangent are tangent and O is the center of the circle?

Back

8 in

Front

The measure of an arc formed by two ___ arcs is the sum of the measure of the two arcs.

Back

congruent

Front

In a plane, a line is tangent to a circle if and only if the line is _________ ______ _____ __________ of the circle at its endpoint on the circle.

Back

perpendicular to a radius

Front

A tangent is a line that _______.

Back

intersects the circle at one point.

Front

Use chords to solve for x: If x = 6 cm, what is the value of x?

Back

x = 6 cm

Front

What is a tangent line?

Back

A line that touches a circle at exactly one point.

Front

What is the relationship between a radius and a tangent line at the point of tangency?

Back

They are perpendicular to each other.

Front

Define a chord in a circle.

Back

A segment whose endpoints lie on the circle.

Front

What is the sum of the measures of two adjacent arcs?

Back

The measure of the arc formed by the two arcs.

Front

If two arcs are congruent, what can be said about their measures?

Back

They are equal.