Geomertry Vocab 1

Question 1

Collinear Points

Answer 1

Two or more points on the same line

Question 2

Coplanar points

Answer 2

Points on the same plane

Question 3

Line segment

Answer 3

Two points on a line and all the points in between them

Question 4

Endpoints

Answer 4

The points at the end of a line segment or ray

Question 5

Congruent

Answer 5

Figures that are the same size or measure/shape

Question 6

Midpoint

Answer 6

The point of a segment that divides it into two congruent segments

Question 7

Ray

Answer 7

Part of a line with one endpoint

Question 8

Circle

Answer 8

A set of points equidistant from a given point called the center

Question 9

Chord

Answer 9

A segment joining two points on a circle

Question 10

Radius

Answer 10

A segment joining the center of a circle and a point on the circle

Question 11

Diameter

Answer 11

A segment joining two points on a circle and that passes through the center

Question 12

Arc

Answer 12

Two points on a circle and the space in between

Question 13

Semi-Circle

Answer 13

If the points are at the ends of the diameter the arc becomes a…

Question 14

Circumference

Answer 14

The distance around a circle

Question 15

Adjacent angles

Answer 15

Two angles that have a common side and a common vertex, but do not overlap

Question 16

Angle bisector

Answer 16

A ray that divides an angle into two congruent angles

Question 17

Angles

Answer 17

Two rays with a common end point, called a vertex

Question 18

Acute angle

Answer 18

An angle with a measure in between 0 degrees and 90 degrees

Question 19

Right angle

Answer 19

An angle with a measure of 90 degrees

Question 20

Obtuse angle

Answer 20

An angle with a measure in between 90 degrees and 180 degrees

Question 21

Straight angle

Answer 21

An angle with a measure of 180 degrees

Question 22

Perpendicular

Answer 22

If two lines intersect to form for congruent angles the lines are… each of the congruent angles is a right angle.

Question 23

Complementary angles

Answer 23

Two angles whose measures have a sum of 90°

Question 24

Supplementary angles

Answer 24

Two angles whose measures have a sum of the 180°

Question 25

Vertical angles

Answer 25

When two lines intersect to form four angles. (The nonadjacent angles are called vertical angles) they are congruent

Question 26

Transversal

Answer 26

A line that intersects with two other lines

Question 27

Vertex

Answer 27

A point that is a common endpoint of an angle or where sides of a polygon meet