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Acute Angle

Right Angle

Obtuse Angle

Straight Angle

An angle that is less than 90 degrees

An angle that is exactly 90 degrees

An angle that is bigger than 90 degrees

An angle that is exactly 180 degrees. It looks like a straigh…

Acute Angle

An angle that is less than 90 degrees

Right Angle

An angle that is exactly 90 degrees

Quadrilateral

Trapezoid

Parallelogram

Rectangle

You are a flat shape with four straight sides. I am the most…

you are a four sided figure with one pair of parallel sides.

You are a 4-sided flat shape with straight sides where opposi…

You are a 4-sided flat shape with straight sides where all in…

Quadrilateral

You are a flat shape with four straight sides. I am the most…

Trapezoid

you are a four sided figure with one pair of parallel sides.

Perpendicular lines

Alternate exterior angles

Exterior angles

Interior angles

2 lines that intersect at right angles

angles that are outside the parallel lines and on opposite si…

when two parallel lines are cut by a transversal, four angles…

when two parallel lines are cut by a transversal, four angles…

Perpendicular lines

2 lines that intersect at right angles

Alternate exterior angles

angles that are outside the parallel lines and on opposite si…

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite…

parallel lines

transversal

skew lines

parallel planes

coplanar lines that dont intersect

line that intersects two lines in two different points

lines that dont intersect and are non coplanar

planes that dont intersect

parallel lines

coplanar lines that dont intersect

transversal

line that intersects two lines in two different points

parallel lines

skew lines

alternate interior angles

corresponding angles

never intersect; always coplaner

never on the same plane; never intersect & never parallel

congruent angles

congruent angles

parallel lines

never intersect; always coplaner

skew lines

never on the same plane; never intersect & never parallel

point

line

Plane

collinear points

has no dimension. represented by a dot

a line has one dimension. represented by a line with two arro…

has two dimensions. represented by a shape that looks like a…

points on the same line

point

has no dimension. represented by a dot

line

a line has one dimension. represented by a line with two arro…

Point

Line

Segment

Plane

mathematical object with no size, which can be specified in -…

A straight path that extends without end in opposite directio…

A part of a line between two endpoints.

A flat surface on which a straight line joining any two point…

Point

mathematical object with no size, which can be specified in -…

Line

A straight path that extends without end in opposite directio…

lines

plane

space

segment

a line is defined as a line of points that extends infinitely…

flat surface that extends indefinitely in all directions.

a boundless three dimensional set of all points.

a part of a line that consists of two points called endpoints…

lines

a line is defined as a line of points that extends infinitely…

plane

flat surface that extends indefinitely in all directions.

Equilateral triangle

Isosceles triangle

Right angle

straight angle

A triangle with all sides congruent

A triangle with two sides congruent

an angle that measures 90 degrees

an angle that measures 180 degrees

Equilateral triangle

A triangle with all sides congruent

Isosceles triangle

A triangle with two sides congruent

Acute angle

Equilateral triangle

Isosceles triangle

Obtuse angle

An angle measuring less than 90 degrees

A triangle with three equal sides

A triangle with two equal sides and two equal angles

An angle greater than 90 degrees and less than 180 degrees

Acute angle

An angle measuring less than 90 degrees

Equilateral triangle

A triangle with three equal sides

Protractor

Construction

Three-Dimensional

Right Rectangular Prisms

A tool used to measure and draw angles.

Line lightly drawn lines to guide drawing other lines and sha…

Having the dimensions of height, width, and depth.

A rectangular prism in which the angles between the bases and…

Protractor

A tool used to measure and draw angles.

Construction

Line lightly drawn lines to guide drawing other lines and sha…

Hypotenuse

Opposite

Adjacent

Sine

The longest side of a right triangle, across from the right a…

The side across from the angle you have/are trying to find

The side next to the angle you have/are trying to find

The equation is: ... sine=opposite/hypotenuse

Hypotenuse

The longest side of a right triangle, across from the right a…

Opposite

The side across from the angle you have/are trying to find

noncollinear points

coplanar points

line segment

plane

Points that do not lie on the same line

points that lie on the same plane

A part of a line with two endpoints

a flat surface that extends forever in all directions

noncollinear points

Points that do not lie on the same line

coplanar points

points that lie on the same plane

Quadrilateral

Trapezoid

Parallelogram

Rectangle

You are a flat shape with four straight sides. I am the most…

you are a four sided figure with one pair of parallel sides.

You are a 4-sided flat shape with straight sides where opposi…

You are a 4-sided flat shape with straight sides where all in…

Quadrilateral

You are a flat shape with four straight sides. I am the most…

Trapezoid

you are a four sided figure with one pair of parallel sides.

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite…

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite…

Angle

Angle bisector

Exterior angle

Interior angle

A figure formed by two rays with a common endpoint.

a line that divides an angle into two equal angles.

An angle on the outside of a polygon formed by two adjacent s…

An angle on the inside of a polygon formed by two adjacent si…

Angle

A figure formed by two rays with a common endpoint.

Angle bisector

a line that divides an angle into two equal angles.

Collinear

Linear Pair

Supplementary angles

Complementary angles

Points that lie on the same line

A pair of adjacent angles whose noncommon sides are opposite…

Two angles whose sum is 180 degrees

Two angles whose sum is 90 degrees

Collinear

Points that lie on the same line

Linear Pair

A pair of adjacent angles whose noncommon sides are opposite…

regular shapes

Irregular shapes

three-dimensional shapes

two-dimensional shapes

shapes that has sides that are all equal.

shapes that have sides of differing lengths.

An object that has height, width and depth, like any object i…

A shape that only has two dimensions (such as width and heigh…

regular shapes

shapes that has sides that are all equal.

Irregular shapes

shapes that have sides of differing lengths.

hypotenuse

scalene triangle

isosceles triangle

equilateral triangle

the side of a right triangle that is opposite the right angle…

a triangle with three unequal sides

a triangle with two equal sides

a triangle with three equal sides and three equal angles

hypotenuse

the side of a right triangle that is opposite the right angle…

scalene triangle

a triangle with three unequal sides

Prime Notation

Translation

Reflection

Rotation

when we move a point to another location we use prime notatio…

move a figure to another location on a grid without changing…

when you flip a figure over a reflection line

when you turn a figure around a point

Prime Notation

when we move a point to another location we use prime notatio…

Translation

move a figure to another location on a grid without changing…

bisector

line segment

plane

angle

Something that cuts an object into two equal parts

A part of a line with two endpoints

a flat surface that extends forever

A figure formed by two rays with a common endpoint

bisector

Something that cuts an object into two equal parts

line segment

A part of a line with two endpoints

Point

Line

Plane

Undefined Terms

No dimension. It is represented by a dot

Has one dimension. It is represented by a line with two arrow…

Has two dimensions. It is represented by a shape that looks l…

The words point, line and plane.

Point

No dimension. It is represented by a dot

Line

Has one dimension. It is represented by a line with two arrow…

supplementary angles

complementary angles

adjacent angles

vertical angles

These two angles (140° and 40°) are Supplementary Angles, bec…

Two angles are Complementary when they ... add up to 90 degrees

either of the two angles that are formed by the intersection…

each of the pairs of opposite angles made by two intersecting…

supplementary angles

These two angles (140° and 40°) are Supplementary Angles, bec…

complementary angles

Two angles are Complementary when they ... add up to 90 degrees

Angles

Reflex angles

classifying figures

nets of objects

Right angle - 90*... Acute angle - less than 90*... obtuse - more t…

subtract 360* from inside angle

polygon - 3 or more sided figure/ closed figure... Irregular pol…

cube - 6 squares... Prism - 6 rectangles... pyramid - all triangles…

Angles

Right angle - 90*... Acute angle - less than 90*... obtuse - more t…

Reflex angles

subtract 360* from inside angle

Theorems

Postulates

3 Undefined terms

Points

statement that can be proven using postulates, definitions an…

statement accepted without proof (usually very obvious

Lines, Points, Planes

- labeled with capital letters

Theorems

statement that can be proven using postulates, definitions an…

Postulates

statement accepted without proof (usually very obvious