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100
A location in space
A point
100
Made up of two rays and a common vertex
Angle
100
The units angles are measured in
Degrees
100
A triangle with one obtuse angle
Obtuse Triangle
100
A quadrilateral with two pairs of parallel sides
Parallelogram
200
A series of points that extends in two directions without end
Line
200
An angle that measures less than 90 degrees
Acute Angle
200
Angles with equal measures
Congruent Angles
200
A triangle with one right angle
Right Triangle
200
A quadrilateral with four right angles and four congruent sides
Square
300
Part of a line with two endpoints
Segment
300
An angle that measures more than 90 degrees
Obtuse Angle
300
The sum of the measure of two angles is 90 degrees
Complimentary Angles
300
A triangles with three congruent sides
Equilateral Triangle
300
Quadrilateral with four right angles
Rectangle
400
A flat surface with no thickness that extends without end in all directions on the surface
Plane
400
An angle that measures 90 degrees
Right Angle
400
The sum of the measure of two angles is 180 degrees
Supplementary Angles
400
A triangle with at least two congruent sides
Isosceles Triangle
400
Quadrilateral with four congruent sides
Rhombus
500
Points on the same line
Collinear
500
An angle that measures 180 degrees
Straight Angle
500
Angles that form two intersecting lines
Vertical Angles
500
A triangle with no congruent sides
Scalene Triangle
500
A quadrilateral with exactly one set of parallel sides
Trapezoid
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