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WorksheetsGeometry Vocab
Total questions: 55
Worksheet time: 28mins
Rotation
moves every point of a figure in the same distance and direction.
a transformation that uses lines like a mirror to reflect a figure.
a transformation where a figure is turned about a fixed point.
a transformation where a figure is enlarged or reduced
Translation
moves every point of a figure in the same distance and direction.
a transformation that uses lines like a mirror to reflect a figure.
a transformation where a figure is turned about a fixed point.
a transformation where a figure is enlarged or reduced
Dilation
moves every point of a figure in the same distance and direction.
a transformation that uses lines like a mirror to reflect a figure.
a transformation where a figure is turned about a fixed point.
a transformation where a figure is enlarged or reduced
Reflection
moves every point of a figure in the same distance and direction.
a transformation that uses lines like a mirror to reflect a figure.
a transformation where a figure is turned about a fixed point.
a transformation where a figure is enlarged or reduced
Converse
the hypothesis leads to the conclusion
the conclusion leads to the hypothesis
negate the hypothesis to the conclusion
negate the conclusion to the hypothesis
Contrapositive
the hypothesis leads to the conclusion
the conclusion leads to the hypothesis
negate the hypothesis to the conclusion
negate the conclusion to the hypothesis
Inverse
the hypothesis leads to the conclusion
the conclusion leads to the hypothesis
negate the hypothesis to the conclusion
negate the conclusion to the hypothesis
Conditional
the hypothesis leads to the conclusion
the conclusion leads to the hypothesis
negate the hypothesis to the conclusion
negate the conclusion to the hypothesis
Reflexive property
when an angle/side equals itself (a = a)
when one angle is equal to the other two, the other two are equal to each other. ( a = b, b = c, so c = a)
when two angles/sides equal each other (a = b is b = a)
Transitive property
when an angle/side equals itself (a = a)
when one angle is equal to the other two, the other two are equal to each other. ( a = b, b = c, so c = a)
when two angles/sides equal each other (a = b is b = a)
Symmetric property
when an angle/side equals itself (a = a)
when one angle is equal to the other two, the other two are equal to each other. ( a = b, b = c, so c = a)
when two angles/sides equal each other (a = b is b = a)
ASA theorem
all three sides are congruent
two sides and the included angle are congruent
two angles and the included side are congruent
two angles and a non included side are congruent
the hypotenuse and one of the legs are congruent
SSS theorem
all three sides are congruent
two sides and the included angle are congruent
two angles and the included side are congruent
two angles and a non included side are congruent
the hypotenuse and one of the legs are congruent
AAS theorem
all three sides are congruent
two sides and the included angle are congruent
two angles and the included side are congruent
two angles and a non included side are congruent
the hypotenuse and one of the legs are congruent
SAS theorem
all three sides are congruent
two sides and the included angle are congruent
two angles and the included side are congruent
two angles and a non included side are congruent
the hypotenuse and one of the legs are congruent
Hypotenuse Leg congruence theorem
all three sides are congruent
two sides and the included angle are congruent
two angles and the included side are congruent
two angles and a non included side are congruent
the hypotenuse and one of the legs are congruent
Deductive reasoning
a statement containing “if and only if”
finding a pattern from specific cases and writing a conjecture for a general case
using facts, definitions, accepted properties, and the laws of logic to form a logical argument
a specific case where the conjecture is false
Biconditional
a statement containing “if and only if”
finding a pattern from specific cases and writing a conjecture for a general case
using facts, definitions, accepted properties, and the laws of logic to form a logical argument
a specific case where the conjecture is false
Inductive reasoning
a statement containing “if and only if”
finding a pattern from specific cases and writing a conjecture for a general case
using facts, definitions, accepted properties, and the laws of logic to form a logical argument
a specific case where the conjecture is false
Counterexample
a statement containing “if and only if”
finding a pattern from specific cases and writing a conjecture for a general case
using facts, definitions, accepted properties, and the laws of logic to form a logical argument
a specific case where the conjecture is false
Line
has one dimension and is represented by a line with two arrowheads.
the initial/starting point
an endpoint containing all points that lie on the same side.
has two dimensions and is represented by a shape formed like a wall/floor with no end
Plane
has one dimension and is represented by a line with two arrowheads.
the initial/starting point
an endpoint containing all points that lie on the same side.
has two dimensions and is represented by a shape formed like a wall/floor with no end
Ray
has one dimension and is represented by a line with two arrowheads.
the initial/starting point
an endpoint containing all points that lie on the same side.
has two dimensions and is represented by a shape formed like a wall/floor with no end
Vector
has one dimension and is represented by a line with two arrowheads.
the initial/starting point
an endpoint containing all points that lie on the same side.
has two dimensions and is represented by a shape formed like a wall/floor with no end
points that lie on the same line.
Coplanar
Collinear
points that lie on the same plane
Coplanar
Collinear
Line segment
one line with a point in the middle forming two separate connecting lines.
when the figure can be mapped onto itself by a reflection in a line
consists of the end points, and all the points between the endpoints.
a point dividing the segments into two congruent lines.
Midpoint
one line with a point in the middle forming two separate connecting lines.
when the figure can be mapped onto itself by a reflection in a line
consists of the end points, and all the points between the endpoints.
a point dividing the segments into two congruent lines.
Opposite rays
one line with a point in the middle forming two separate connecting lines.
when the figure can be mapped onto itself by a reflection in a line
consists of the end points, and all the points between the endpoints.
a point dividing the segments into two congruent lines.
Line of symmetry
one line with a point in the middle forming two separate connecting lines.
when the figure can be mapped onto itself by a reflection in a line
consists of the end points, and all the points between the endpoints.
a point dividing the segments into two congruent lines.
Similar figures are the same size and shape.
True
False
Congruent figures are the same size and shape.
True
False
Transformation
a function that changes a figures size completely
a function that moves or changes a figure in some way to produce a new figure called an “image.”
a function that requires a shape to change its complete complexion to make a pre-image
none of the above
Supplementary angles
two angles adding up to 180 degrees.
Two angles that add up to 90 degrees
a 90 degree angle
a 180 degree angles
Complementary angles
two angles adding up to 180 degrees.
Two angles that add up to 90 degrees
a 90 degree angle
a 180 degree angles
Right angles
two angles adding up to 180 degrees.
Two angles that add up to 90 degrees
a 90 degree angle
a 180 degree angles
Straight angles
two angles adding up to 180 degrees.
Two angles that add up to 90 degrees
a 90 degree angle
a 180 degree angles
Law of detachment
a statement which proves the triangle to be congruent.
if one statement is true to the other 2 statements, the other 2 statements are true to each other
the parts which match up two congruent triangles
if the hypothesis of a conditional statement is true, then the conclusion is also true
Law of syllogism
a statement which proves the triangle to be congruent.
if one statement is true to the other 2 statements, the other 2 statements are true to each other
the parts which match up two congruent triangles
if the hypothesis of a conditional statement is true, then the conclusion is also true
Corresponding parts
a statement which proves the triangle to be congruent.
if one statement is true to the other 2 statements, the other 2 statements are true to each other
the parts which match up two congruent triangles
if the hypothesis of a conditional statement is true, then the conclusion is also true
Congruency statement
a statement which proves the triangle to be congruent.
if one statement is true to the other 2 statements, the other 2 statements are true to each other
the parts which match up two congruent triangles
if the hypothesis of a conditional statement is true, then the conclusion is also true
scalene triangle
3 congruent sides
3 congruent angles
1 right angle
no congruent sides
at least 2 congruent sides
Right triangle
3 congruent sides
3 congruent angles
1 right angle
no congruent sides
at least 2 congruent sides
Isosceles triangle
3 congruent sides
3 congruent angles
1 right angle
no congruent sides
at least 2 congruent sides
Equiangular triangle
3 congruent sides
3 congruent angles
1 right angle
no congruent sides
at least 2 congruent sides
Equilateral triangle
3 congruent sides
3 congruent angles
1 right angle
no congruent sides
at least 2 congruent sides
Vertical angles
two angles vertically opposite from each other
angles lie between two lines and on the same side of the transversal
when two angles have corresponding positions
angles lie outside the two lines and on opposite sides of the transversal
angles lie between the two lines and on opposite sides of the transversal
Corresponding angles
two angles vertically opposite from each other
angles lie between two lines and on the same side of the transversal
when two angles have corresponding positions
angles lie outside the two lines and on opposite sides of the transversal
angles lie between the two lines and on opposite sides of the transversal
Consecutive interior angles
two angles vertically opposite from each other
angles lie between two lines and on the same side of the transversal
when two angles have corresponding positions
angles lie outside the two lines and on opposite sides of the transversal
angles lie between the two lines and on opposite sides of the transversal
Alternate exterior angles
two angles vertically opposite from each other
angles lie between two lines and on the same side of the transversal
when two angles have corresponding positions
angles lie outside the two lines and on opposite sides of the transversal
angles lie between the two lines and on opposite sides of the transversal
Alternate interior angles
two angles vertically opposite from each other
angles lie between two lines and on the same side of the transversal
when two angles have corresponding positions
angles lie outside the two lines and on opposite sides of the transversal
angles lie between the two lines and on opposite sides of the transversal
Convex
A polygon that has an indent in its shape
A polygon with perfect lines
Concave
A polygon that has an indent in its shape
A polygon with perfect lines
Perpendicular lines
two lines with complete opposite slopes form a 90 degree angle.
two lines with the same slope that never touch
Parallel lines
two lines with complete opposite slopes form a 90 degree angle.
two lines with the same slope that never touch
