Unit 4 Test Flashcards
1
Q
What are concentric circles?
A
Circles with the same centerpoint.
2
Q
What is a chord
A
A line segment with both endpoints on the circle.
3
Q
What is a diameter?
A
A chord going through the center of a circle.
4
Q
What is a secant line?
A
A line intersecting a circle twice.
5
Q
What is a tangent line?
A
A line intersecting a circle exactly once.
6
Q
What is a central angle?
A
An angles who’s vertex is at the center of the circle.
7
Q
What is an inscribed angle?
A
An angle inside of a circle who’s vertex is on the circle.
8
Q
What is an arc?
A
Part of a circle.
9
Q
What is a major arc?
A
An arc that is more than half of the circle.
10
Q
What is a minor arc?
A
An arc the is less than half of a circle.
11
Q
What is a semicircle?
A
Half of a circle.
12
Q
What are congruent circles?
A
2 circles with congruent radii.
