Angle Vocabulary

Question 1

line that will never cross and are the same distance apart and may go on forever (lines will not cross if they go on and on.

Answer 1

Parallel

Question 2

part of a circle that represents an angle between two intersecting lines

Answer 2

Arc

Question 3

When lines intersect they form angles and angles are the spaces or shapes that are formed between the intersecting line- they meet at a vertex. Name angles by names of points.

Answer 3

Angles

Question 4

lines that form square corners when they intersect, they form right angles.

Answer 4

perpendicular

Question 5

lines that form it are perpendicular and the angles measure 90 degrees.

Answer 5

right angles

Question 6

when lines cross at a point called the intersection.

Answer 6

intersection

Question 7

Angles that are less than a right angle; less the 90*

Answer 7

Acute angles

Question 8

angles greater than a right angle; greater than 90 degrees.

Answer 8

Obtuse angles

Question 9

a straight line- two rays pointing in the opposite directions and equals 180 degrees.

Answer 9

straight angle

Question 10

two angles that form a right angle are called complementary angles = 90 degrees.

Answer 10

Complementary angles

Question 11

two angles combine to form a straight angle = 180 degrees.

Answer 11

Supplementary Angles

Question 12

the point where two rays meet.

Answer 12

Vertex

Question 13

having the same measurement.

Answer 13

Congruent

Question 14

a measurement used to measure angles

Answer 14

Degrees

Question 15

a tool that measures angles.

Answer 15

Protractor