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 angles and angles are the spaces or shapes that are formed between the intersecting lines-they meet at a vortex. 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 intersect.

Answer 6

Intersection

Question 7

Angles that are less than a right angle = 90 degrees

Answer 7

Acute Angles

Question 7

Angles greater than a right angle = 90 degrees

Answer 7

Obtuse Angle

Question 8

Straight line - two rays pointing in opposite directions

Answer 8

Straight Angles

Question 9

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

Answer 9

Complementary Angles

Question 10

Two angles that combine to form a straight angle (180 degrees)

Answer 10

Supplementary Angles

Question 11

The point where two rays meet.

Answer 11

Vertex

Question 12

Having the same measure.

Answer 12

Congruent

Question 13

A measurement used to measure angles (small amount).

Answer 13

Degrees

Question 14

A tool that measures angles.

Answer 14

Protractor