Angle Vocabulary

Question 1

Parallel

Answer 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)

Question 2

Angles

Answer 2

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

Question 3

Arc

Answer 3

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

Question 4

Perpendicular

Answer 4

Lines that form square corners when they intersect they form right angles

Question 5

Right Angles

Answer 5

Lines that form it are perpendicular and the angle measures 90%

Question 6

Intersection

Answer 6

When lines cross they cross at a point called an intersection

Question 7

Acute Angles

Answer 7

Angles that are less than a right angle, less than 90%

Question 8

Obtuse Angles

Answer 8

Angles greater than a right angle, greater than 90%

Question 9

Straight Angle

Answer 9

Straight line - two rays pointing in opposite directions

Question 10

Complementary Angles

Answer 10

Two angles that form a right angle are called complementary angles (90%

Question 11

Supplementary Angles

Answer 11

Two angles combine to form a straight angle (180%)

Question 12

Vertex

Answer 12

The point where two rays meet

Question 13

Congruent

Answer 13

Having the same measure

Question 14

Degrees

Answer 14

A measurement used to measure angles ( small amount ) symbol

Question 15

Protractor

Answer 15

A tool that measures angles