10.1- Circles

Question 1

Circle

Answer 1

Set of points in a plane that are equidistant from a given point, called the center of the circle.

Question 2

Interior of a circle

Answer 2

All points inside the circle

Question 3

Exterior of a circle

Answer 3

All points outside the circle

Question 4

Chord

Answer 4

A SEGMENT who’s end points are on the circle

Question 5

Diameter

Answer 5

Chord that passes through the center of the circle

Question 6

Radius (radii)

Answer 6

Segment that has the center as an endpoint and a point on the circle as the other endpoint

Question 7

Tangent

Answer 7

A LINE that intersects a circle at exactly one point

Question 8

Point of tangency

Answer 8

The point at which a tangent intersects the circle

Question 9

Secant

Answer 9

A line that contains a chord

Question 10

Common tangent

Answer 10

A line that is tangent to 2 circles

Question 11

Common external tangent

Answer 11

A common tangent that does not intersect the SEGMENT that joins the centers of the circles

Question 12

Common internal tangent

Answer 12

A common tangent that does intersect the SEGMENT that joins the centers of the circles

Question 13

Concentric circles

Answer 13

Circles that have the same center and have different radii

Question 14

Congruent circles

Answer 14

Two circles are congruent if they have congruent radii