test 1

Question 1

Intersects a segment, line, or angle such that the two consequence parts are equal

Answer 1

bisector

Question 2

Union of three non-collinear points together with segments that join them

Answer 2

triangle

Question 3

Points that are all on the same line

Answer 3

collinear points

Question 4

The union of two rays with a common endpoint

Answer 4

angle

Question 5

Triangle such that all sides are equal

Answer 5

equilateral triangle

Question 6

Triangle such that no two sides are equal

Answer 6

scalene triangle

Question 7

Triangle such that exactly one angle is greater than 90 degrees

Answer 7

obtuse triangle

Question 8

Triangle such that all angles are less than 90 degrees

Answer 8

acute triangle

Question 9

Triangle such that one angle measures 90 degrees

Answer 9

right triangle

Question 10

Collection of points in a straight path that continues in both directions indefinitely

Answer 10

line

Question 11

A piece of a line with two endpoints

Answer 11

line segment

Question 12

A quadrilateral with exactly one pair of parallel sides

Answer 12

trapezoid

Question 13

Quadrilateral in which opposite sides are parallel

Answer 13

parallelogram

Question 14

A parallelogram with adjacent sides equal

Answer 14

rhombus

Question 15

A parallelogram that contains a right angle

Answer 15

rectangle

Question 16

Rectangle with adjacent sides of equal length

Answer 16

square

Question 17

A four sided polygon

Answer 17

quadrilateral

Question 18

Closed geometric figure with 3 or more straight sides

Answer 18

polygon

Question 19

All sides are of equal length

Answer 19

regular polygon

Question 20

A common endpoint of two segments or rays

Answer 20

vertex

Question 21

A sentence that contains a variable; when the variable is given value, then it is either true or false

Answer 21

open statement

Question 22

A sentence that is either true or false

Answer 22

closed statement

Question 23

To extend under or be opposite to

Answer 23

subtended

Question 24

Line segment with endpoints on the same circle

Answer 24

chord

Question 25

A polygon with all angles less than 180 degrees and outward facing vertices

Answer 25

convex

Question 26

Logical operator denoted by ^

Answer 26

and

Question 27

Logical operator denoted by ∨

Answer 27

or

Question 28

Logical operator denoted by ~

Answer 28

not

Question 29

Educated guess (which can be proven true or false)

Answer 29

conjecture

Question 30

Logical operator that means "implies"

Answer 30

-->

Question 31

The "if" and "then". parts of a statement are switched

Answer 31

converse

Question 32

Both parts of a statement are negated

Answer 32

inverse

Question 33

Both parts of a statement are switched and negated

Answer 33

contrapositive

Question 34

Polygon in which the diagonals do not intersect

Answer 34

concave

Question 35

The exact middle of a line segment

Answer 35

midpoint

Question 36

In a circle or triangle, a set of points whose distance to the center are less than the radius

Answer 36

interior to

Question 37

In a circle or a triangle, a set of points whose distance to the center are more than the radius

Answer 37

exterior to

Question 38

(n-2)*180

Answer 38

sum of interior formula angles

Question 39

Angles that are non-adjacent, on the same side of the transversal, and one is interior while the other is exterior

Answer 39

corresponding angles

Question 40

Share a common vertex and their sides form two lines

Answer 40

vertical angles

Question 41

Same size and shape

Answer 41

congruent

Question 42

Angles on the side of a figure

Answer 42

interior angles

Question 43

Angles on the outside of a figure

Answer 43

exterior angles

Question 44

Valid conjecture

Answer 44

theorem

Question 45

The result of a hypothesis

Answer 45

conclusion

Question 46

Statement assumed to be true conjecture with certain conditions

Answer 46

hypothesis

Question 47

Statements accepted without proof

Answer 47

axiom

Question 48

Making an inference based on premises

Answer 48

deductive reasoning

Question 49

Tool similar to a ruler but has not measurement markings

Answer 49

straightedge

Question 50

Tool that would collapse when lifted from a surface

Answer 50

floppy compass

Question 51

A mathematical text authored by Euclid and his peers; the most widely circulated book about mathematics for 2000 years

Answer 51

elements

Question 52

Objects that are side. by side and have the same distance continuously between them

Answer 52

parallel

Question 53

A straight line at an angle of 90 to a given line, plane or surface

Answer 53

perpendicular

Question 54

When corresponding pairs of angles have the same measure

Answer 54

similar

Question 55

Any of a set of straight lines passing through a point

Answer 55

ray

Question 56

A line that is this to a circle will be perpendicular to the radius of the circle at that point

Answer 56

tangent

Question 57

An implication (contains both a hypothesis and conclusion; typically uses if-then structure)

Answer 57

conditional statement

Question 58

When a structure has the ability to withstand outside events, such as impact or human error consequences

Answer 58

robust constructs

Question 59

Inscribed quadrilateral whose vertices all lie on a single circle

Answer 59

cyclic quadrilateral

Question 60

A theorem that follows very easily from another

Answer 60

corollary

Question 61

The set of points equidistant from a given line on one side of it forms a straight line

Answer 61

clavius' axiom

Question 62

A deductive argument

Answer 62

proof

Question 63

Given a line l and any point P not on l, there is exactly one line through P that is parallel to l

Answer 63

Hayfair's postulate

Question 64

Line segment from a vertex perpendicular to the line containing the opposite side (in a triangle)

Answer 64

altitude

Question 65

Proof that a conjecture is false

Answer 65

counter example

Question 66

Greek mathematics considered to be "father of geometry"

Answer 66

euclid