What makes a polygon a polygon?
Closed figure with straight edges and three or more sides
What type of angle is Angle ABE?

Acute
How many sides does a quadrilateral have?
4
What type of angle is this angle?

Obtuse
How many degrees is a right angle?
90 degrees
How many lines of symmetry does the image below have?

2

How many degrees is a straight angle?
180
Which quadrilateral has all equal sides and no right angles?
rhombus
An angle with a measure greater than 0 degrees and less than 90 degrees.
acute angle
What is this called?
Line Segment
What do we call this?

Ray
Definite beginning.
Line goes on forever in the other direction.
A polygon with five sides and five angles.
pentagon
What type of triangle is this?
Equilateral, Scalene, or Isosceles?
Explain your reasoning.

Scalene Triangle
It has 3 different side lengths.
True or False: Parallel lines cross each other
False

What is the angle shown?
60 Degrees
An angle greater than 90 degrees.
Obtuse
Which shape is described below?
-Four Sides of Equal Length
-Opposite Sides Parallel
-No right angles
C. Rhombus

A 3D figure with 5 faces, 9 edges, and 6 vertices and 2 triangular bases
triangular prism
Two lines that cross in the middle and create a 90 degree angle
Perpendicular lines
True or False: A rectangle has only 1 line of symmetry
False
How is an acute angle different than an right angle?
An acute angle is smaller than a right angle (less than 90 degrees)
A polygon with 3 sides?
triangle
A quadrilateral with exactly one pair of parallel sides.
trapezoid
Square, Rectangle, Trapezoid, Rhombus, Parallelogram
The point where two rays meet in an angle.
Vertex