Unit 1 Test

Question 0

What is a line?

Answer 0

A “moving point”. Travels in two opposite directions forever, it has one dimension, and is named by two points. It is infinitely small and has no width, it never bends or curves.

Question 1

What is a point?

Answer 1

A singular location with no size, no dimension, and is infinitely small. It is named with capital letters.

Question 2

What is a plane?

Answer 2

A 2 diminsional flat surface that spans outward in all directions forever. It is infinitely flat and named with 3 points.

Question 3

What is a segment/line segment?

Answer 3

A “line” that starts at one point and ends at another. Or a part of a line formed between two points.

Question 4

What is a ray?

Answer 4

A “line” that extends in one direction forever. Or a part of a line that has one endpoint.

Question 5

What is an angle?

Answer 5

2 rays with a common endpoint.

Question 6

What are collinear points?

Answer 6

2 or more points on the same line.

Question 7

What are coplanar points?

Answer 7

2 or more points on the same plane.

Question 8

What is inductive reasoning?

Answer 8

Reaching conclusions based on observations.

Question 9

What is a sequence?

Answer 9

A list of numbers.

Question 10

What is an arithmetic sequence?

Answer 10

A sequnce where you add or subtract the same number consecutive terms.

Question 11

What is a geometric sequence?

Answer 11

A sequence where you multiply or divide by the same number in between terms.

Question 12

What are congruent segments?

Answer 12

2 segments that have the same length.

Question 13

What is a midpoint?

Answer 13

A point splitting a segment into two congruent segments.

Question 14

What is the segment addition postulate?

Answer 14

The distance from A to B+B to C=the distance from A to C.

Question 15

What are complimentary angles?

Answer 15

Two angles that add up to 90 degrees.

Question 16

What are supplementary angles?

Answer 16

Two angles that add up to 180 degrees.

Question 17

What is an acute angle?

Answer 17

An angle with a measure between 0 and 90 degrees.

Question 18

What is an obtuse angle?

Answer 18

An angle with measures between 90 and 180 degrees.

Question 19

What is a right angle?

Answer 19

An angle with a measure of 90 degrees.

Question 20

What is a congruent angle?

Answer 20

2 angles with equal measure.

Question 21

What is an angle bisector?

Answer 21

A ray that splits an angle into two congruent angles.

Question 22

What are adjacent angles?

Answer 22

2 angles that share a vertex, a ray, and dont overlap.

Question 23

What is a linear pair of angles?

Answer 23

2 adjacent angles that form a line.

Question 24

What is the angle addition postulate?

Answer 24

Angle ABV plus angle BVC= angle AVC

Part+Part=Whole

Question 25

What are parallel lines?

Answer 25

2 lines on the same plane that intersect.

Question 26

What are perpendicular lines?

Answer 26

A line that intersects another line segment at its midpoint forming a right angle.

Question 27

What is the incenter?

Answer 27

The point where 3 angle bisectors of a triangle intersect.

Question 28

What is the circumcenter?

Answer 28

The point where 3 perpendicular bisectors of a triangle intersect.

Question 29

What are the 5 building blocks of geometry postulates?

Answer 29

1. Two lines intersect to form a point
2. Two planes intersect to form a line
3. Through any two points there is exactly one line
4. Through any three non-collinear points there is exactly one plane
5. If you take two points on a plane, then the line containing those points must be on the same plane.

Question 30

What is the median of a triangle?

Answer 30

A line segment involving a triangle going from a vertex to the midpoint of the opposite side.

Question 31

What is the centroid?

Answer 31

The point where 3 medians of a triangle intersect.

Question 32

What is a postulate?

Answer 32

Something obvious.

Question 33

What is the altitude of a triangle?

Answer 33

A segment involving a triangle going from a vertex perpendicular to the opposite side.

Question 34

What is the orthocenter?

Answer 34

The point where the 3 altitudes of a triangle intersect.

Question 35

What do you use the find the centroid?

Answer 35

Median(vertex to midpoint)

Question 36

What do you use to find the orthocenter?

Answer 36

Altitudes(vertex perpendicular to opposite side)

Question 37

What do you use to find the incenter?

Answer 37

Angle bisectors

Question 38

What do you use to find the circumcenter?

Answer 38

perpendicular bisectors.