Show:
Points and Lines
Angle Measure and Special Angles
Polygons
Triangles
Quadrilaterals
100
Shows an exact location.
What is a point?
100
An 90 degree angle.
What is an right angle?
100
A plane figure formed by joining 3 or more line segments at their endpoints.
What is a polygon?
100
A triangle with 3 congruent sides and 3 congruent angles.
What is an equilateral triangle?
100
A parallelogram with 4 right angles.
What is a rectangle (or a square)?
200
Part of a line with one endpoint.
What is a ray?
200
An angle with a measure less than 90 degrees.
What is an acute angle?
200
Line segments that have the same length.
What are congruent line segments?
200
A triangle with one right angle.
What is a right triangle?
200
A parallelogram with 4 congruent sides but no right angles.
What is a rhombus?
300
Formed by two rays that have the same endpoint.
What is an angle?
300
An angle that measures larger that 90 degrees and less than 180 degrees.
What is an obtuse angle?
300
A line segment joining two vertexes of a polygon, but not a side.
What is a diagonal?
300
A triangle with no congruent sides and no congruent angles.
What is a scalene triangle?
300
A parallelogram with 4 congruent sides and 4 right angles.
What is a square?
400
Lines that cross each other.
What are intersecting lines?
400
Angles that have a sum of 90 degrees.
What are complementary angles?
400
A polygon with 6 sides.
What is a hexagon?
400
A triangle with all acute angles.
What is an acute triangle?
400
The only quadrilateral with only one pair of parallel sides.
What is a trapezoid?
500
A set of points on a flat surface that extends forever without end.
What is a plane?
500
Angles that have a sum of 180 degrees.
What are supplementary angles?
500
A polygon with 5 sides.
What is a pentagon?
500
The sum of the angles in any triangle equals this number.
What is 180 degrees?
500
The three special properties of a parallelogram.
What are: 1. Opposite sides parallel. 2. Opposite sides are congruent. 3. Opposite angles are congruent.