Midterm Review

Question 1

Intersecting lines

Answer 1

Lines which meet at one point

Question 2

Isosceles Triangle

Answer 2

Triangle with two congruent sides or two congruent angles

Question 3

Parts of an isosceles triangle?

Answer 3

Two legs across from congruent angles, then a vertex across from the base

Question 4

Linear pair

Answer 4

Adjacent, supplementary angles

Question 5

Median

Answer 5

Connects a triangle from midpoint of a side to angle bisector of an angle

Question 6

Midpoint

Answer 6

Point which splits a line segment into two equal parts

Question 7

The mid segment of a triangle…

Answer 7

Is always parallel to the base and half of the base’s length

Question 8

Obtuse Triangle

Answer 8

Any triangle with a measure over 90 degrees

Question 9

Opposite rays

Answer 9

Literally just lines which form angles

Question 10

Orthocenter

Answer 10

Where the altitudes of a triangle meet

Question 11

Parallel lines

Answer 11

Coplanar lines which may never intersect

Question 12

Perpendicular bisector

Answer 12

A line which meets another line at its midpoint, at a 90 degree angle

Question 13

Perpendicular lines

Answer 13

Lines which meet at a 90 degree angle

Question 14

Point

Answer 14

A single place in existence

Question 15

Line

Answer 15

The connection of at least two points

Question 16

Plane

Answer 16

A platform upon which points and lines lay upon

Question 17

Postulate

Answer 17

A statement which must be taken as true and cannot be proven

Question 18

Ray

Answer 18

Line with a defined start point, but no end point

Question 19

Remote interior angles

Answer 19

Any angle within a triangle

Question 20

Right angle

Answer 20

Angle which measures exactly 90 degrees

Question 21

Scalene triangle

Answer 21

A triangle of which each side is different

Question 22

Segment

Answer 22

A section of a line

Question 23

Segment bisector

Answer 23

A line which divides a segment into 2 equal parts

Question 24

Skew lines

Answer 24

Noncoplanar lines which may never intersect

Question 25

Straight angle

Answer 25

An 180 degree angle

Question 26

Supplementary angle

Answer 26

Angles which add up to 180 degrees

Question 27

Theorem

Answer 27

A statement which can be proven but generally is simply accepted as truth

Question 28

Vertical angles

Answer 28

Congruent angles located across from each other diagonally

Question 29

Acute angle

Answer 29

Angle less than 90 degrees

Question 30

Adjacent angles

Answer 30

Angle placed right next to each other

Question 31

Altitude of a triangle

Answer 31

Line which makes a triangle right

Question 32

Angle bisector

Answer 32

Divides an angle into two equal parts

Question 33

Centroid

Answer 33

Take the median of each angle (midpoint to angle across from it, 2/3s rule)

Question 34

Circumcenter

Answer 34

Bisects lines

Question 35

Collinear

Answer 35

Points that are all connected by one line; must need three points to be NON-collinear

Question 36

Coplanar

Answer 36

Points or lines on the same plane. There must be at least four points to be NON Coplanar

Question 37

Complementary angles

Answer 37

Angles which add up to 90 degrees

Question 38

Format of a conditional statement?

Answer 38

If (HYPOTHESIS) then (CONCLUSION)

Question 39

Format of the inverse of a conditional statement?

Answer 39

If not (HYPOTHESIS) then not (CONCLUSION)

Question 40

Format of the converse of a conditional statement?

Answer 40

If (CONCLUSION) then (HYPOTHESIS)

Question 41

Format of the contrapositive of a conditional statement?

Answer 41

If not (CONCLUSION) then not (HYPOTHESIS)

Question 42

CPCTC

Answer 42

Corresponding Parts of a Congruent Triangle are Congruent

Question 43

Exterior angle

Answer 43

Angle located on an extension of a select side of a triangle

Question 44

Fractional distance

Answer 44

Find the distance that is a/b of the way from (x, y) to (x,y)