I have 6 sides and 6 angles. Name me.
A Hexagon
A Quadrilateral
Draw a polygon with exactly 3 sides and 3 angles.
Name the angle that is smaller than a square corner.
Acute angle
What is a polygon?
A polygon is a closed 2D shape made of straight lines (no curves).
A quadrilateral with at least 1 pair of parallel sides. Name me.
A Trapezoid
Write the number of sides and angles in this polygon.
6 Sides
6 angles
This angle forms a square corner. Name it.
Right Angle
Draw the shapes that are NOT polygons. Why are they not polygons.
Circle and Oval because they have curves and no straight sides.
Write All or Some:
______ rhombuses are squares.
______ quadrilaterals are closed plane shapes.
1. Some
2. All
What is a plane shape?
A plane shape is a shape that is made of straight lines and/or curved edges.
Using your arms, show me the three types of angles (Right angle, Obtuse angle, and acute angle)
Right angle = Square arms
Obtuse angle = Bigger opening
Acute angle = Small opening
Draw a parallelogram.
Must have exactly 2 pairs of parallel sides.
Using your geometry dictionary and the word bank on the white board, write all the ways to describe this polygon.
Quadrilateral
Rhombus
Parallelogram
Each side in a polygon is made of what kind of lines?
Straight Lines
Line Segments
Name the angles in this polygon.
5 Obtuse angles
Nonagon
Which statement is true and why?
All rectangles are squares.
All squares are rectangles.
All squares are rectangles. This is true because squares are V.I.P's. If all rectangles were squares they would need all equal length sides.
4 Sided
Polygon
4 angles/vertices
Draw a polygon with at least two right angles. Hint: Start with that L shaped corner.
Answers may vary.