Polygon, symmetry, Triangles

What is a polygon?

• A closed plane figure made up of line segments

• An open plane figure made up of line segments

• A closed plane figure made up of rays

• An open plane figure made up of rays

What is a vertex?

• The point where two waves meet

• The point where two lines meet

• The point where two sides meet

• The point where two segments meet

How many sides does a Triangle have?

• 4

• 3

• 2

• 6

How many sides does a Quadrilateral have?

• 4

• 3

• 6

• 9

How many sides does a Pentagon have?

• 4
• 3
• 5
• 9

How many sides does an Octagon have?

• 4
• 3
• 9
• 8

Is a quadrilateral that has opposite sides that are parallel and all of its sides are the same length

• Rhombus
• Trapezoid
• Rectangle
• Square

Is a quadrilateral with only one pair of parallel sides.

• Rhombus
• Square
• Rectangle 
• Trapezoid

Has 2 pairs of parallel sides.

• Trapezoid
• Triangle
• Parallelogram
• Rhombus

Why is a Triangle called an Acute Triangle?

• It has 3 acute angles

• It has 2 acute angles

• It has 1 acute angle

• It has 0 acute angles