Geometry Vocabulary

Question 1

Acute Angle

Answer 1

An angle less than 90 degrees.

Question 2

Right Angle

Answer 2

An angle equal to 90 degrees.

Question 3

Obtuse Angle

Answer 3

An angle greater than 90 degrees.

Question 4

Straight Angle

Answer 4

An angle equal to 180 degrees.

Question 5

Vertical Angles

Answer 5

Angles that are across from each other when 2 lines intersect.

Question 6

Adjacent Angle

Answer 6

Angles that share a common ray and vertex. (angles right next to each other)

Question 7

Complementary Angles

Answer 7

Angles that add up to 90 degrees.

Question 8

Supplementary Angles

Answer 8

Angles that add up to 180 degrees.

Question 9

Parallel Lines

Answer 9

Two lines that never intersect

Question 10

Transversal

Answer 10

A line that intersects 2 or more lines.

Question 11

Corresponding Angles

Answer 11

Angles that are in the same position on the parallel lines in relation to the transversal (the angles are congruent)

Question 12

Alternate Interior Angles

Answer 12

Angles that are inside the parallel lines and on opposite sides of the transversal

Question 13

Alternate Exterior Angles

Answer 13

Angles that are outside the parallel lines and on opposite sides of the transversal (they are congruent)

Question 14

Congruent

Answer 14

having the same size and shape.

Question 15

Consecutive Interior Angles

Answer 15

Angles that are inside the parallel lines and on the SAME side of the transversal. (supplementary angles)