Angle Vocabulary

Question 1

parallel

Answer 1

Lines that will never cross and are the same distance apart ad may go on forever. (will not cross if they on & on.)

Question 2

arc

Answer 2

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

Question 3

angles

Answer 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 name angles by names of points ∠= angle symbol

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 a interseciton.

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 direction.

Question 10

complementary (angles)

Answer 10

two angles that form a right angle are called a complementary angles (90°)

Question 11

supplementary (anles)

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