Semester Exam Review

Question 1

Coordinate

Answer 1

The real number that corresponds to a point

Question 2

Distance

Answer 2

The absolute value of the difference of coordinates of A and B

Question 3

Between

Answer 3

When 3 points are collinear one point is between the other 2

Question 4

Construction

Answer 4

A geometric drawing that uses a limited set of tools usually a compass and a straight edge

Question 5

Adjacent angles

Answer 5

Two angles that share a common vertex and side but no common interior points

Question 6

Conditional statement

Answer 6

A logical statement that has two parts: hypothesis and conclusion

Question 7

Negation

Answer 7

Opposite of the original statement

Question 8

Converse

Answer 8

If q then p

Question 9

Inverse

Answer 9

If not p then not q

Question 10

Contra positive

Answer 10

If not q then not p

Question 11

Biconditional statement

Answer 11

If and only if

Question 12

Conjecture

Answer 12

Based on observations

Question 13

Vector

Answer 13

Has direction and size, arrow from one point to another

Question 14

Component form

Answer 14

Horizontal then vertical component of vector

Question 15

Reflection in x axis

Answer 15

(a,-b)

Question 16

Reflection in y axis

Answer 16

(-a,b)

Question 17

Reflection in y=x

Answer 17

(b,a)

Question 18

Reflection in y=-x

Answer 18

(-b,-a)

Question 19

Enlargement

Answer 19

K is greater then 1

Question 20

Reduction

Answer 20

K is less than one

Question 21

Scalene triangle

Answer 21

No congruent sides

Question 22

Isosceles triangle

Answer 22

At least two congruent sides

Question 23

Equilateral triangle

Answer 23

3 congruent sides

Question 24

Acute triangle

Answer 24

3 acute angles

Question 25

Right triangle

Answer 25

1 right angle

Question 26

Obtuse triangle

Answer 26

1 obtuse angle

Question 27

Equiangular triangle

Answer 27

3 congruent angles

Question 28

Legs

Answer 28

2 congruent sides of an isosceles triangle

Question 29

Vertex angle

Answer 29

Angle formed by legs

Question 30

Base

Answer 30

Non congruent side of isosceles triangle

Question 31

Base angles

Answer 31

2 angles adjacent to the base of an isosceles triangle

Question 32

Circumcenter made of

Answer 32

Perpendicular bisectors

Question 33

Circumcenter distance

Answer 33

Equidistant from vertices

Question 34

Incenter made of

Answer 34

Angle bisectors

Question 35

In center distance

Answer 35

Equidistant from sides

Question 36

Centroid made of

Answer 36

Medians

Question 37

Medians

Answer 37

Connects vertex to opposite midpoint

Question 38

Centroid distance

Answer 38

2/3 to vertex 1/3 to midpoint

Question 39

Orthocenter made of

Answer 39

Altitudes

Question 40

Altitude

Answer 40

Vertex to opposite side (perpendicular)

Question 41

Postulate or axiom

Answer 41

A rule that is accepted without proof