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Regular Polygon

Parallelogram

Rectangle

Rhombus

a polygon with all sides and all angles equal

a quadrilateral with both pairs of opposite sides parallel

A parallelogram with four right angles

A parallelogram with four equal sides

Regular Polygon

a polygon with all sides and all angles equal

Parallelogram

a quadrilateral with both pairs of opposite sides parallel

diameter

diagonal

right trapezoid

two-dimensional

a line segment drawn through the center of a circle with both…

a segment that connects any two vertices of the polygon but i…

a trapezoid with exactly two right angles

a figure that lies on a flat surface that has length and width

diameter

a line segment drawn through the center of a circle with both…

diagonal

a segment that connects any two vertices of the polygon but i…

side of a polygon

vertex of a polygon

diagonal

regular polygon

segment that forms a polygon

common endpoint of two sides

segment that connects any two non consecutive vertices

equilateral and equiangular polygon

side of a polygon

segment that forms a polygon

vertex of a polygon

common endpoint of two sides

base angles of a trapezoid

consecutive angles

isosceles trapezoid

kite

each pair of adjacent angles to a base

share a common side

whose nonparallel opposite sides are congruent.

is a quadrilateral with two pairs of congruent adjacent sides…

base angles of a trapezoid

each pair of adjacent angles to a base

consecutive angles

share a common side

diameter

diagonal

right trapezoid

two-dimensional

a line segment drawn through the center of a circle with both…

a segment that connects any two vertices of the polygon but i…

a trapezoid with exactly two right angles

a figure that lies on a flat surface that has length and width

diameter

a line segment drawn through the center of a circle with both…

diagonal

a segment that connects any two vertices of the polygon but i…

Concave

Regular Polygon

Diagonal

Vertex of a Polygon

A polygon in which a diagonal can be drawn such that part of…

A quadrilateral that is both equilateral and equiangular.

A segment connecting two nonconsecutive vertices of a polygon.

The intersection of two sides of the polygon.

Concave

A polygon in which a diagonal can be drawn such that part of…

Regular Polygon

A quadrilateral that is both equilateral and equiangular.

similar triangles

Angle-Angle Similarity Theorem

Side-Side Similarity Theorem

included angle

triangles that have all pairs of corresponding angles congrue…

"If two angles of one triangle are congruent to two angles of…

"If all three corresponding sides of two triangles are propor…

an angle formed by two consecutive sides of a figure

similar triangles

triangles that have all pairs of corresponding angles congrue…

Angle-Angle Similarity Theorem

"If two angles of one triangle are congruent to two angles of…

polygon

vertex of a polygon

consecutive vertices

diagonal

A closed plane figure formed by three or more line segments t…

the point where two sides of a polygon meet

two vertices that are endpoints of the same side of a polygon

A line segment connecting non-adjacent nonconsecutive vertice…

polygon

A closed plane figure formed by three or more line segments t…

vertex of a polygon

the point where two sides of a polygon meet

Coordinate proof

Equiangular polygon

Equilateral polygon

Isosceles trapezoid

using coordinate geometry and algebra to prove theorems in ge…

a polygon with all angles congruent

a polygon with all sides congruent

a trapezoid with legs that are congruent

Coordinate proof

using coordinate geometry and algebra to prove theorems in ge…

Equiangular polygon

a polygon with all angles congruent

base of a prism

dihedral angle

edge of a polyhedron

edge of a dihedral angle

A face formed by the polygonal region or its image.

The figure formed by two half-planes with a common edge.

The segment formed by the intersection of two faces of a poly…

The intersection of the half-planes of a dihedral angle.

base of a prism

A face formed by the polygonal region or its image.

dihedral angle

The figure formed by two half-planes with a common edge.

midsegment (6.4)

midpoint (1.3)

perpendicular bisector (6.1)

equidistant (6.1)

Connects the midpoints of two sides in a triangle. It is para…

A point that divides a segment into two congruent pieces (in…

A line that is perpendicular to a segment at its midpoint (cu…

The same distance

midsegment (6.4)

Connects the midpoints of two sides in a triangle. It is para…

midpoint (1.3)

A point that divides a segment into two congruent pieces (in…

Altitude

angle bisector

base

centroid

A perpendicular segment in which one endpoint is a vertex of…

A ray whose endpoint is the vertex and is located in the inte…

The side opposite the vertex angle

The point of intersection of the 3 medians of a triangle

Altitude

A perpendicular segment in which one endpoint is a vertex of…

angle bisector

A ray whose endpoint is the vertex and is located in the inte…

Concurrent Lines

Angle Bisector

Perpendicular Bisector

Median

3 or more lines that intersect at one point

a segment that suts an angle in half

a segment bisector that is also perpendicular to the segment

a segment that joins a vertex of a triangle and the midpoint…

Concurrent Lines

3 or more lines that intersect at one point

Angle Bisector

a segment that suts an angle in half

Triangle

Acute (triangle)

Right (triangle)

Obtuse (triangle)

a closed figure with three sides

a triangle with three acute angles

a triangle with one right angle

a triangle with one obtuse angle

Triangle

a closed figure with three sides

Acute (triangle)

a triangle with three acute angles

concave

convex

isosceles trapezoid

kite

A polygon where part of the diagonal is in the exterior

A polygon where the entire diagonal is in the interior

Trapezoid where the legs are congruent

Quadrilateral with exactly two pairs of consecutive sides

concave

A polygon where part of the diagonal is in the exterior

convex

A polygon where the entire diagonal is in the interior

polygon

sides of a polygon

vertex of a polygon

diagonal of a polygon

A closed plane figure formed by three or more line segments

Each line segment that forms a polygon

the point where two sides of a polygon meet

A segment that joins two nonconsecutive vertices of a polygon

polygon

A closed plane figure formed by three or more line segments

sides of a polygon

Each line segment that forms a polygon

Polygon

Sides

Consecutive vertices

Diagonal

a plane figure that is formed by three or more segments

segment of a pdygon

two vertices that are endpoint of the same sides

a segment that joins two nonconsecutive vertices of a polygon…

Polygon

a plane figure that is formed by three or more segments

Sides

segment of a pdygon

Diagonal

Parallelogram

Rectangle

Rhombus

A segment that connects any two nonconsecutive verticies.

A quadrilateral with both pairs of opposite sides parallel.

A parallelogram with four right angles.

A parallelogram with all four sides congruent.

Diagonal

A segment that connects any two nonconsecutive verticies.

Parallelogram

A quadrilateral with both pairs of opposite sides parallel.

concave

convex

decagon

Hexagon

polygon will always have an interior angle with a measure tha…

all interior angles are less than or equal to 180 degrees

10 sided

6sided

concave

polygon will always have an interior angle with a measure tha…

convex

all interior angles are less than or equal to 180 degrees

properties of inequalities

exterior angle inequality theorem

given if p then q; converse

given if p then q; converse

a>b, b>c, then a >c... a > b, c>0, then a+c > b+c... a> b, c> 0, th…

the exterior angle of a triangle is greater than either remot…

q then p

inverse not p then not q

properties of inequalities

a>b, b>c, then a >c... a > b, c>0, then a+c > b+c... a> b, c> 0, th…

exterior angle inequality theorem

the exterior angle of a triangle is greater than either remot…

base of a trapezoid

base angle of a trapezoid

concave polygon

convex polygon

one of the two parallel sides of the trapezoid.

one of a pair of consecutive angles whose common side is a ba…

a polygon in which a diagonal can be drawn such that part of…

a polygon in which no diagonal contains points in the exterio…

base of a trapezoid

one of the two parallel sides of the trapezoid.

base angle of a trapezoid

one of a pair of consecutive angles whose common side is a ba…

parallelogram

rhombus

rectangle

square

a quadrilateral with both pair of opposite sides parallel

a parallelogram with four congruent sides

a parallelogram with four right angles

a parallelogram with four congruent sides and four right angles

parallelogram

a quadrilateral with both pair of opposite sides parallel

rhombus

a parallelogram with four congruent sides

polygon

diagonal of a polygon

parallelogram

rhombus

A closed plane figure made up of line segments

a segment that joins two nonconsecutive vertices

A quadrilateral with two pairs of parallel sides

a parallelogram with 4 congruent sides

polygon

A closed plane figure made up of line segments

diagonal of a polygon

a segment that joins two nonconsecutive vertices

The sum of all angles is (n - 2) * 180.

The sum of all exterior angles is 360.

The sum of all one interior angle of a…

Congruent

Polygon Angle Sum Theorem

Polygon Exterior Angle Theorem

Polygon Interior Angle Sum Theorem

Diagonals of a Rectangle

The sum of all angles is (n - 2) * 180.

Polygon Angle Sum Theorem

The sum of all exterior angles is 360.

Polygon Exterior Angle Theorem

Midsegment

Midpoint

Perpendicular Bisector

Equidistant

connects the midpoint of two sides in a triangle. It is paral…

a point that divides a segment into congruent pieces (in half)

a line that is perpendicular to a segment at its midpoint (cu…

the same distance

Midsegment

connects the midpoint of two sides in a triangle. It is paral…

Midpoint

a point that divides a segment into congruent pieces (in half)

Polygon Angle-Sum Theorem

Corollary to the Polygon Angle-Sum The…

Polygon Exterior Angle-Sum Theorem

parallelogram

the sum of the measures of a n-gon is (n-2)180

the measure of each interior angle of a regular polygon is (n…

the sum of the measures of the exterior angles of a convex po…

a quadrilateral whose opposite sides are both parallel and eq…

Polygon Angle-Sum Theorem

the sum of the measures of a n-gon is (n-2)180

Corollary to the Polygon Angle-Sum The…

the measure of each interior angle of a regular polygon is (n…

Polygon

Diagonal

Convex Polygon

Concave Polygon

A closed plane figure formed by three or more segments.

A segment that connects two nonconsecutive vertices.

No diagonal of a polygon contains points outside the polygon.…

A polygon with a diagonal contains points outside the polygon…

Polygon

A closed plane figure formed by three or more segments.

Diagonal

A segment that connects two nonconsecutive vertices.

Polygon

Consecutive Angles

Bases of a Trapezoid

Legs of a Trapezoid

A closed plane figure formed by three or more segments.

Angles of a polygon that share a side and are supplementary.

The parallel sides of a trapezoid.

The nonparallel sides of a trapezoid.

Polygon

A closed plane figure formed by three or more segments.

Consecutive Angles

Angles of a polygon that share a side and are supplementary.

Midsegment (6.4)

Midpoint (1.3)

Perpendicular Bisector (6.1)

Equidistant (6.1)

Connects the midpoints of two sides in a triangle. It is para…

A point that divides a segment into two congruent pieces (in…

A line that is perpendicular to a segment at its midpoint (cu…

The same distance.

Midsegment (6.4)

Connects the midpoints of two sides in a triangle. It is para…

Midpoint (1.3)

A point that divides a segment into two congruent pieces (in…

Ratio

Proportion

Means

Extremes

Comparison of two numbers, a/b, a:b, a to b

equation that sets two ratios equal

denominator of first ratio, numerator of second ratio

Numerator of first ratio, denominator of second ratio

Ratio

Comparison of two numbers, a/b, a:b, a to b

Proportion

equation that sets two ratios equal

parallelogram

parallelogram

parallelogram

parallelogram

a quadrilateral where both pairs of opposites sides are paral…

a quadrilateral whoses consecutive angles are supplementary

a quadrilateral where both pairs of opposite sides are congru…

a quadrilateral where both pairs of opposite angles congruent

parallelogram

a quadrilateral where both pairs of opposites sides are paral…

parallelogram

a quadrilateral whoses consecutive angles are supplementary

polygon

sides of a polygon

vertices

convex

a closed plane figure with at least 3 sides that each interse…

segments that form the polygon

where two sides of a polygon meet

no line that contains a side of the polygon contains a point…

polygon

a closed plane figure with at least 3 sides that each interse…

sides of a polygon

segments that form the polygon

Diagonal

Parallelogram

Rhombus

Rectangle

A segment that connects two nonconsecutive vertices.

A quadrilateral with both pairs of opposite side parallel.

A parallelogram with four congruent sides.

A parallelogram with four right angles.

Diagonal

A segment that connects two nonconsecutive vertices.

Parallelogram

A quadrilateral with both pairs of opposite side parallel.

Angle-Angle similarity Theorem

Angle-bisector/ Proportional side theo…

Geometric Mean

Dilation

two triangles are similar if they have two corresponding angl…

If a ray bisects an angle of a triangle then it divides the o…

The central number in a geometric progression

Transformation that produces an image that is the same shape…

Angle-Angle similarity Theorem

two triangles are similar if they have two corresponding angl…

Angle-bisector/ Proportional side theo…

If a ray bisects an angle of a triangle then it divides the o…

base of a prism

dihedral angle

edge of a polyhedron

edge of a dihedral angle

A face formed by the polygonal region or its image.

The figure formed by two half-planes with a common edge.

The segment formed by the intersection of two faces of a poly…

The intersection of the half-planes of a dihedral angle.

base of a prism

A face formed by the polygonal region or its image.

dihedral angle

The figure formed by two half-planes with a common edge.

Opposite sides of a parallelogram are...

Angles of a polygon that share a side…

Opposite angles of a parallelogram are…

Given a parallelogram how do the diago…

congruent

consecutive angles

congruent

They bisect each other

Opposite sides of a parallelogram are...

congruent

Angles of a polygon that share a side…

consecutive angles

Polygon Interior Angle-Sum Theorem

Equilateral

Equiangular

Regular

The sum of the measures of the interior angles of an n-gon is:

All sides are congruent in a polygon.

All angles are congruent in a polygon.

All sides are congruent and all angles are congruent in a pol…

Polygon Interior Angle-Sum Theorem

The sum of the measures of the interior angles of an n-gon is:

Equilateral

All sides are congruent in a polygon.

altitude of a triangle

Centroid

Circumcenter

Concurrent

The perpendicular segment from a vertex of a ... triangle to the…

The point of concurrency of the three medians of a triangle.

The point of concurrency of the three ... perpendicular bisector…

Three or more lines, rays, or segments that ... intersect in the…

altitude of a triangle

The perpendicular segment from a vertex of a ... triangle to the…

Centroid

The point of concurrency of the three medians of a triangle.

____ sides of a parallelogram are cong…

opposite angles of a parallelogram are…

diagonals of a parallelogram

If three or more parallel lines cut of…

opposite

congruent

bisect each other

they cut off congruent segments on every transversal

____ sides of a parallelogram are cong…

opposite

opposite angles of a parallelogram are…

congruent

polygon

vertex of a polygon

consecutive vertices

diagonal

A closed plane figure formed by three or more line segments t…

the point where two sides of a polygon meet

two vertices that are endpoints of the same side of a polygon

A line segment connecting non-adjacent nonconsecutive vertice…

polygon

A closed plane figure formed by three or more line segments t…

vertex of a polygon

the point where two sides of a polygon meet

Polygon

Consecutive Angles

Bases of a Trapezoid

Legs of a Trapezoid

A closed plane figure formed by three or more segments.

Angles of a polygon that share a side and are supplementary.

The parallel sides of a trapezoid.

The nonparallel sides of a trapezoid.

Polygon

A closed plane figure formed by three or more segments.

Consecutive Angles

Angles of a polygon that share a side and are supplementary.