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100
The image after a transformation
Image
100
A line drawn through the middle of a figure that shows one side is a mirror image of the other
Line of Symmetry
100
A parallelogram with four right angles
Rectangle
100
A type of proof based on the contradiction of an assumption
Indirect Proof
100
The point of concurrency of the altitudes of a triangle
Orthocenter
200
The point of concurrency of the angle bisectors of a triangle
Incenter
200
The point of concurrency of the medians of a triangle
Centroid
200
The line of symmetry that is the same distance apart from the pre-image and the image
Line of Reflection
200
The segment from the vertex of a triangle that is perpendicular to the opposite side
Altitude of Triangle
200
A quadrilateral that has two different pairs of congruent consecutive sides
Kite
300
What a figure has when it can be rotated and look like itself
Rotational Symmetry
300
A proof that shows how statements and reasons are connected where statements are written in boxes and reasons are written under the boxes
Flowchart Proof
300
The definition you seek is in another category
-continue-
300
The segment that connects the vertex of a triangle with the midpoint of the opposite side
Median
300
The change in the size/location of a figure
Transformation
400
The point of intersection for three or more lines
Point of Concurrency
400
A transformation that preserves the size of a figure
Rigid Motion
400
The point of concurrency of the perpendicular bisectors of a triangle
Circumcenter
400
Equal in measure
Congruent
400
The transformation that is a turn
Rotation
500
The image before a transformation
Pre-image
500
A parallelogram with for congruent sides
Rhombus
500
The segment that connects the midpoints of two sides of a trapezoid
Median of a trapezoid
500
The transformation that is a flip
Reflection
500
The segment that connects the midpoints of two sides of a triangle
Midsegment
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