Angle Vocabulary

Question 1

Lines that will never cross and are the same distance apart and may go on forever (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 angle and angles are the spaces or shapes that are formed between the intersecting lines - They meet at a vertex and name angles by names of points. < = angle symbol

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 angle measures 90 degrees.

Answer 5

Right Angles

Question 6

When lines cross they cross at a point called an intersection.

Answer 6

Intersection

Question 7

Angles that are less than a right angle; less than 90 degrees.

Answer 7

Acute Angles

Question 8

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

Answer 8

Obtuse Angles

Question 9

Straight line - two rays pointing in opposite directions

Answer 9

Straight Angle

Question 10

Two angles that from 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 measure

Answer 13

Congruent

Question 14

A measurement used to measure angles (small amount)

Answer 14

Degrees

Question 15

A tool that measures angles

Answer 15

Protractor