Circles and Lines Jeopardy

Lines in a Circle

100

A line segment that extends from the center of a circle to its perimeter.

Radius

200

A line segment that extends from one "side" of the circle to another.

Chord

300

A line segment that extends from one "side" of the circle to another and passes through the center.

Diameter

400

Region between two radii and an arc

Sector

500

A tangent touches the circle at how many points

1

Angles in a Circle

100

An angle in a circle whose vertex is the center of the circle.

central angle

200

An angle whose vertex is on the perimeter of the circle.

Inscribe Angle

300

If the arc of a circle is a semicircle, what is the measurement of the inscribed angle that intercepts said arc?

90 degrees.

400

Find x and y

x=40^o

y=40⁰

500

Find x and y

y=60^o

x=60^o

Tangents and Chords of a Circle

100

What is the point where a tangent line touches a circle called? 

The point of tangency 

200

In a circle, if a radius is drawn to the point of tangency, then the tangent line is _______ to that radius. 

perpendicular/a right angle

300

In a circle, if the radius is drawn to some point on the circle and a line through that point makes a right angle, then the line through that point must be a _________.

tangent line

400

Is line AB tangent to the Circle? True or False

True

500

In a circle, if the radius is perpendicular to a chord, then the radius ______ the chord. 

bisects/cuts in half

Review Topics

100

Diameter is 14, find radius

7

200

Find the values of x and y

y=50^O

X=80^O

300

The sum of all angles in a triangle is ______.

180 degrees

400

Find x

x=4

500

Solve x+5 = 2x - 7.

x=12