Flashcards in Unit 4 Test Deck (12):

1

## What are concentric circles?

### Circles with the same centerpoint.

2

## What is a chord

### A line segment with both endpoints on the circle.

3

## What is a diameter?

### A chord going through the center of a circle.

4

## What is a secant line?

### A line intersecting a circle twice.

5

## What is a tangent line?

### A line intersecting a circle exactly once.

6

## What is a central angle?

### An angles who's vertex is at the center of the circle.

7

## What is an inscribed angle?

### An angle inside of a circle who's vertex is on the circle.

8

## What is an arc?

### Part of a circle.

9

## What is a major arc?

### An arc that is more than half of the circle.

10

## What is a minor arc?

### An arc the is less than half of a circle.

11

## What is a semicircle?

### Half of a circle.

12