# Study sets matching "vocab geometry 2"

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…

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)*…

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…

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.

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.

point

line

plane

collinear points

indicates a location and has no size (undefined term)

represented by a straight path that extends in two opposite di…

represented by a flat surface that extends without end, has no…

points that lie on the same line

point

indicates a location and has no size (undefined term)

line

represented by a straight path that extends in two opposite di…

Inductive Reasoning

Conjecture

Counter Example

Conditional Statement

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

A statement that is believed to be true

An example that proves a conjecture or statement false

A statement that can be written in the form "if p then q" wher…

Inductive Reasoning

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

Conjecture

A statement that is believed to be true

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…

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.

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.

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…

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

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

Conjecture

Inductive Reasoning

Counterexample

Conditional Statement

An unproven statement that is based on observations

When you find a pattern in specific cases and then write a con…

A specific case for which the conjecture is false.

Logical statement that has two parts: hypothesis and a conclus…

Conjecture

An unproven statement that is based on observations

Inductive Reasoning

When you find a pattern in specific cases and then write a con…

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…

Inductive Reasoning

Conjecture

Counter Example

Conditional Statement

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

A statement that is believed to be true

An example that proves a conjecture or statement false

A statement that can be written in the form "if p then q" wher…

Inductive Reasoning

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

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.

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…

MIDPOINT... If X is the midpoint of segmen…

BISECTOR... How is a midpoint different fr…

DEGREE... How much of a turn around a circ…

RAY... Describe a ray.

segment AX is congruent to segment BX

A midpoint is a point on the segment; whereas a segment bisect…

1/360 th

It is part of a line and it has one endpoint but it continues…

MIDPOINT... If X is the midpoint of segmen…

segment AX is congruent to segment BX

BISECTOR... How is a midpoint different fr…

A midpoint is a point on the segment; whereas a segment bisect…

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

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.

Biconditional

Compound statement

conclusion

conjecture

the combination of a conditional statement and its converse. A…

combines two or more statements

the part of an if-then statement (conditional) that follows th…

a conclusion reached by using inductive reasoning

Biconditional

the combination of a conditional statement and its converse. A…

Compound statement

combines two or more statements

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

Median

Angle Bisector

Perpendicular Lines

Perpendicular Bisector

Segment from a vertex to the opposite side of a triangle that…

A line, segment or ray that cuts an angle into two congruent a…

Two lines that intersect creating right angles.

A line, segment or ray that cuts a segment into two congruent…

Median

Segment from a vertex to the opposite side of a triangle that…

Angle Bisector

A line, segment or ray that cuts an angle into two congruent a…