# Study sets matching "vocab geometry 2"

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Line of Symmetry and Line of Reflection

Magnitude of Rotation

Rotation

Magnitude

The line l is known as the ____________________.

A square has rotational symmetry of order 4. This means that t…

The transformation that occurs when lines m and n are intersec…

Translations can be accomplished by using a vector. Vectors ar…

Line of Symmetry and Line of Reflection

The line l is known as the ____________________.

Magnitude of Rotation

A square has rotational symmetry of order 4. This means that t…

equilateral triangle

isosceles triangle

scalene triangle

equiangular triangle

an equilateral triangle is a triangle in which all three sides…

an isosceles triangle is a triangle that has two sides of equa…

A triangle with all sides of different lengths. No sides are e…

An equiangular triangle is a triangle where all three interior…

equilateral triangle

an equilateral triangle is a triangle in which all three sides…

isosceles triangle

an isosceles triangle is a triangle that has two sides of equa…

Vertex

Interior Angle Sum (IAS)

Exterior Angle Sum (EAS)

Polygons

The point at the intersection of two line segments.

The sum of the interior angles of an n-sided polygon is (n-2)*…

The sum of the exterior angles of a polygon as they are extend…

A plane figure with at least three straight sides.

Vertex

The point at the intersection of two line segments.

Interior Angle Sum (IAS)

The sum of the interior angles of an n-sided polygon is (n-2)*…

Central Angle

Inscribed Angle

congruent

Arc measure

An angle that has a vertex at the center of the circle.

An angle whose vertex is on the circle and sides are chords.

If two chords are congruent then the central angle is ________…

The central angle determines the _____________________________…

Central Angle

An angle that has a vertex at the center of the circle.

Inscribed Angle

An angle whose vertex is on the circle and sides are chords.

algebraic proof

axiom

compound statement

conclusion

a method to prove statements using properties that justify eac…

any mathematical statement that serves as a starting point fro…

two statements put together and formed into a sentence... example…

The "q or then" in a conditional statement

algebraic proof

a method to prove statements using properties that justify eac…

axiom

any mathematical statement that serves as a starting point fro…

conjecture

counterexample

deductive reasoning

inductive reasoning

a statement you believe to be true based on inductive reasoning

a drawing, statement, or number that shows that a conjecture i…

the process of using logic to draw conclusions from given fact…

the process of reasoning that a rule or statement is true beca…

conjecture

a statement you believe to be true based on inductive reasoning

counterexample

a drawing, statement, or number that shows that a conjecture i…

Area

Perimeter

Area vs perimeter

Trapezoid

Area is the number of square units enclosed by the two dimensi…

Perimeter is the distance around the outside of a 2D shape.

Area is the number of square units enclosed by the 2D shape.... P…

Two dimensional shape with four sides and one pair of parallel…

Area

Area is the number of square units enclosed by the two dimensi…

Perimeter

Perimeter is the distance around the outside of a 2D shape.

Perpendicular Lines

Conditional Statement

Converse

Bi-Condtional Statement

Lines that intersect to form right angles

A statement that can be written as an "if...then..." statement

A statement that is formed by switching the hypothesis and con…

When both a conditional statement and its converse are true -…

Perpendicular Lines

Lines that intersect to form right angles

Conditional Statement

A statement that can be written as an "if...then..." statement

Midpoint

Segment bisector

Straight angle

Obtuse angle

A point that divides a segment into two congruent segments

A point, line, ray, or segment that divides a segment into two…

Measures 180 degrees

Measures more than 90 degrees and less than 180 degrees

Midpoint

A point that divides a segment into two congruent segments

Segment bisector

A point, line, ray, or segment that divides a segment into two…

counterexample

postulate

adjacent angles

complementary angles

an example that proves a statement false

an accepted statement of fact

are a pair of angles with a common vertex and a common side, b…

Two angles whose sum is 90 degrees

counterexample

an example that proves a statement false

postulate

an accepted statement of fact

square

rectangle

triangle

cone

A quadrilateral with 4 sides that are equal and has all 90 deg…

A quadrilateral with four right angles

A polygon with 3 sides and 3 angles.

A solid (3-dimensional) object with a circular flat base joine…

square

A quadrilateral with 4 sides that are equal and has all 90 deg…

rectangle

A quadrilateral with four right angles

alternate interior angles

conjecture

line

proof by contradiction

inside the parallel lines, opposite sides of the transversal

An educated guess

A straight, unbroken set of points that goes on forever. It ha…

a form of proof that establishes the truth or validity of a pr…

alternate interior angles

inside the parallel lines, opposite sides of the transversal

conjecture

An educated guess

point

line

ray

line segment

a fixed location in space

a figure made up of points that extend forever in both directi…

a figure that has one endpoint and extends forever in the othe…

a piece of a line marked by two endpoints

point

a fixed location in space

line

a figure made up of points that extend forever in both directi…

Angle

Vertex of an angle

Measure of an angle

Degrees

is formed by two rays that share a common endpoint provided th…

is a the common endpoint of the two rays of an angle.

is the smallest amount of rotation about the vertex between th…

is the unit of measurement for angles.

Angle

is formed by two rays that share a common endpoint provided th…

Vertex of an angle

is a the common endpoint of the two rays of an angle.

Inductive Reasoning

Conjecture

Counterexample

Conditional Statement

It is used to draw a conclusion based on a pattern.

A statement that is believed to be true.

It is an example that proves a conjecture or statement is fals…

A statement written in if then form with a hypothesis and conc…

Inductive Reasoning

It is used to draw a conclusion based on a pattern.

Conjecture

A statement that is believed to be true.

Kite

Trapezoid

Isosceles trapezoid

Parallelogram

A quadrilateral with two distinct pairs of consecutive sides.

A quadrilateral with exactly one pair of parallel... sides.

A trapezoid with two congruent legs.

A quadrilateral with two pairs of parallel sides.

Kite

A quadrilateral with two distinct pairs of consecutive sides.

Trapezoid

A quadrilateral with exactly one pair of parallel... sides.

line

point

midpoint

midpoint

a straight one dimensional figure having no thickness and exte…

A zero dimensional object. ... Has no part.

The point on a line segment dividing it into 2 congruent parts.

the point on a line segment dividing it into two congruent par…

line

a straight one dimensional figure having no thickness and exte…

point

A zero dimensional object. ... Has no part.

Geometry

Point

Line

Plane

The study of earth measure.

Has location, but no size.

A straight, continuous arrangement of infinitely many points.…

Has length and width but no thickness. It is a flat surface th…

Geometry

The study of earth measure.

Point

Has location, but no size.

Right angle

Obtuse angle

Complimentary angles

Supplementary angles

angle that measures exactly 90 degrees.

angle that is >90 degrees and <180 degrees.

Two angles whose measures have a sum of 90 degrees.

Two angles whose measures have a sum of 180 degrees.

Right angle

angle that measures exactly 90 degrees.

Obtuse angle

angle that is >90 degrees and <180 degrees.

Inductive Reasoning

Conjecture

Counterexample

Statement

Reasoning based on specific observations to arrive at a conclu…

Answer reached using inductive reasoning (always true, unless…

Example proving an original statement wrong

Sentence that is either true or false

Inductive Reasoning

Reasoning based on specific observations to arrive at a conclu…

Conjecture

Answer reached using inductive reasoning (always true, unless…

acute triangle

obtuse triangle

parallelogram

rectangle

A triangle that has three acute angles.

A triangle with one obtuse angle.

A quadrilateral with opposites sids equal in length and parall…

A quadrilateral with 4 right angles. Both sets of opposite sid…

acute triangle

A triangle that has three acute angles.

obtuse triangle

A triangle with one obtuse angle.

Congruent

Midpoint

Segment Bisector

Perpendicular Lines

Same shape and size.... Symbol: ≅

The point between the endpoints of a line segment that divides…

Any line, segment, ray, or plane that intersects a segment at…

Lines, line segments, or rays that intersect to form right ang…

Congruent

Same shape and size.... Symbol: ≅

Midpoint

The point between the endpoints of a line segment that divides…

Conjecture

Conditional

Hypothesis

Conclusion

a conclusion reached by using inductive reasoning

if then statement

in an if-then statement the hypothesis is the part that follow…

the part of a if-then statement that following then

Conjecture

a conclusion reached by using inductive reasoning

Conditional

if then statement

Conditional

Hypothesis

Conclusion

Truth value

Another name for an IF....Then Statement

The part following the if statement

The part following the then statement

The conditional can be either true or false

Conditional

Another name for an IF....Then Statement

Hypothesis

The part following the if statement

Two-Column Proof (Formal Proof)

Postulate/Axiom

Conditional Statement

Proof

A type of proof written in columns.

A statement that describes a fundamental relationship between…

An "if, then" statement.

A logical argument in which each statement you provide is supp…

Two-Column Proof (Formal Proof)

A type of proof written in columns.

Postulate/Axiom

A statement that describes a fundamental relationship between…