Basics
Angles
Triangles/Quads
Circles/Symmetry
Transformations/ Congruency
100
An exact location in space
What is a point?
100
The place where two rays join together together to make an angle
What is a vertex?
100
A triangle with all acute angles
What is an acute triangle?
100
A closed plane figure made up of all points the same distance from a center point
What is a circle?
100
Figures that have the same shape and size
What are congruent figures?
200
A flat surface that extends forever in all directions
What is a plane?
200
An angle of exactly 180 degrees
What is a straight angle?
200
A triangle with all sides congruent
What is an equilateral triangle?
200
An angle whose vertex is the center of the circle
What is a central angle?
200
Moves a figure in a straight direction
What is a translation?
300
Lines in the same plane that do not intersect
What are parallel lines?
300
A pair of angles that are formed by intersecting lines, with no sides in common
What are vertical angles?
300
A parallelogram with all sides congruent
What is a rhombus (or square)?
300
The sum of the adjacent central angles of any circle
What is 360 degrees?
300
This moves a figure about a point
What is a rotation?
400
A point that is halfway between two endpoints
What is a midpoint?
400
Two angles whose measures add up to 180 degrees
What are supplementary angles?
400
The sum of all quadrilaterals’ angles
What is 360 degrees?
400
An arc that connects the endpoints of a diameter
What is a semi-circle?
400
A square has this many lines of symmetry
What is four?
500
Intersecting lines that form a right angle
What are perpendicular lines?
500
Angles that have the same measure
What are congruent angles?
500
A rectangle with all sides congruent
What is a square?
500
A region bounded by two radii and an arc
What is a sector?
500
Rotational symmetry is when a figure does this
What is rotates onto itself in less than a full turn?
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