1.4 Measure and Classify Angles

Question 1

Angle

Answer 1

Something that consists of two different rays with the same endpoint

Question 2

Angle sides

Answer 2

The rays of an angle

Question 3

What is the endpoint in an angle called?

Answer 3

The vertex

Question 4

Measure of an angle

Answer 4

The absolute value of the difference of its rays

Question 5

What is an angle classified as if it measures 0 < x < 90 ?

Answer 5

Acute

Question 6

What is an angle classified as if it measures 90

Answer 6

Right

Question 7

What is an angle classified as if it measures 90 < x < 180 ?

Answer 7

Obtuse

Question 8

What is an angle classified as if it measures 180?

Answer 8

Straight

Question 9

What is a straight angle also known as?

Answer 9

A line

Question 10

What is a congruent angle?

Answer 10

An angle with the same measure as another

Question 11

What is an angle bisector?

Answer 11

A ray that divides an angle into two equal angles

Question 12

When naming an angle, which point must ALWAYS be the letter in the middle?

Answer 12

The vertex

Question 13

An angle can be named after its endpoint, except in which scenario?

Answer 13

If another angle has the same endpoint

Question 14

Angle addition postulate

Answer 14

If ray BD bisects angle ABC, then ABD + DBC = ABC