Ch 1 Lesson 5

Question 1

angle

Answer 1

the set of points that contain two different rays that have the same endpoint

Question 2

vertex

Answer 2

the common endpoint of two rays or line segments

Question 3

sides of an angle

Answer 3

the rays that create an angle

Question 4

interior of an angle

Answer 4

the region that contains all of the points between sides of an angle

Question 5

exterior of an angle

Answer 5

the region that contains all of the points outside of an angle

Question 6

measure of an angle

Answer 6

the absolute value of the difference of the real numbers matched by the sides of the angle on a protractor

Question 7

acute angle

Answer 7

an angle that measures greater that 0 degrees, but less than 90 degrees

Question 8

right angle

Answer 8

an angle that measures exactly 90 degrees

Question 9

obtuse angle

Answer 9

an angle that measures greater than 90 degrees, but less than 180 degrees

Question 10

straight angle

Answer 10

an angle that measures exactly 180 degrees

Question 11

congruent angles

Answer 11

angles that have the same measure

Question 12

angle bisector

Answer 12

a ray that divides an angle into two congruent angles