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 & 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 vertex. You 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 angle measures 90 degrees.

Answer 5

Right angle

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 that are greater than a right angle; greater than 90 degrees.

Answer 8

Obtuse angle

Question 9

Straight lines - two rays pointing in opposite directions.

Answer 9

Straight angle

Question 10

Two angles that form a right angle are called complementary angles.

Answer 10

Complementary angles

Question 11

Two angles combine to form a straight angle.

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.

Answer 14

Degrees

Question 15

Measures angles.

Answer 15

Protractor