Simple Stuff
Angles
Quadrilaterals
Triangles
Potpourri
100
One particular place; denoted by a letter.
What is a point?
100
Two rays starting at the same point form this.
What is an angle?
100
The number of sides in every quadrilateral
What is 4?
100
All sides of different length; short, medium, long
What is a scalene triangle?
100
A triangle with all 3 sides the same
What is an equilateral triangle?
200
All of the points including and between two named points; denoted by two letters under a bar
What is a line segment?
200
A small angle; less than 90 degrees
What is an acute angle?
200
All opposite sides parallel
What is a parallelogram?
200
Two sides the same length
What is an isosceles triangle?
200
A quadrilateral with all four sides the same length, but not necessarily a square
What is a rhombus?
300
All of the points starting at one named point and continuing straight through another named point without end; denoted by two letters under an arrow
What is a ray?
300
A large angle; greater than 90 degrees but still less than 180 degrees
What is an obtuse angle?
300
One pair of opposite sides parallel, but the other pair not parallel
What is a trapezoid?
300
All three angles are less than 90 degrees
What is an acute triangle?
300
All three angles in a triangle add up to this number of degrees
What is 180?
400
All of the points passing straight through two named points and continuing without end in both directions; denoted by two letters under a double arrow
What is a line?
400
A 90-degree angle; a square corner
What is a right angle?
400
A parallelogram with square corners
What is a rectangle?
400
One angle is exactly 90 degrees
What is a right triangle?
400
The point where two rays start when forming an angle; a corner in a polygon
What is a vertex?
500
Of line, ray, or line segment, the only one with a measurable length
What is a ;ine segment?
500
A 180-degree (flat) angle
What is a straight angle?
500
A rhombus with square corners
What is a square?
500
One angle is greater than 90 degrees
What is an obtuse triangle?
500
A fancy geometry word for "equal" or "the same"
What is congruent?
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