Polygon Vocabulary
Triangles and quadrilaterals are closed plane figures called what?
Polygons
I am a 3-sided figure. What polygon and I called?
Triangle
A circle is a polygon.
False, because a circle has no straight edges
A triangle that has three equal sides
Equilateral
A polygon with two pairs of parallel lines that are equal in length
Parallelogram
Do regular or irregular polygons have sides of equal length and angles of equal measure?
Regular Polygons
I am an enclosed 6-sided figure. What kind of polygon am I?
Hexagon
Polygons all have four sides.
False, Polygons are figures that have at least 3 straight sides and are enclosed.
A triangle that has two equal sides
Isosceles
A polygon with only one pair of parallel sides
Trapezoid
What is part of a line with two end points?
Line Segment
I am an enclosed 5-sided figure. What kind of polygon am I?
Pentagon
Polygons have at least three sides
True
A triangle that has no equal sides
Scalene
A parallelogram with four right angles
Rectangle/Square
Do regular or irregular polygons have sides of unequal length and angles of unequal measure?
Irregular Polygons
I am an enclosed 4-sided figure. What kind of polygon am I?
Quadrilateral
Polygons are three dimensional
False, Two dimensional
How many interior triangles can be made in an octagon?
6
A parallelogram with sides the same length
Rhombus
What is a point where two or more line segments meet? (The "corners" of a shape)
Vertex
I am an enclosed 8-sided figure. What kind of polygon am I?
Octagon
Polygons are enclosed straight-lined figures.
True
How many interior triangles can be made in a shape with 23 sides?
21
A rectangle with all sides of the same length
Square