Polygons
True for False: A polygon can have curved sides.
False.
A polygon is a 2-D shape that is closed and has all straight sides.
How many sides does a quadrilateral have?
Four
Quad-Four
Easy way to remember is that quad has four letters!
Parallel lines
I have three sides and three angles.
Triangle
RIDDLE!
I’m tall when I’m young, and I’m short when I’m old. What am I?
A candle
Is this shape a polygon? Why or why not? (Ms. Abochale will draw)
No. A polygon is a closed shape with staright sides.
Is this shape a quadrilateral? Why or why not.
(Ms. Abochale will draw shape).
No. A quadrilateral only has four sides.
My shapes CANNOT have curved sides. They also HAVE to be closed.
Polygons
I have 4 equal sides. I have 4 right angles and 2 sets of parallel sides.
Square
What is an acute angle?
What is an obtuse angle?
An acute angle is an angle less than 90 degrees. (Smaller angle)
An obtuse angle is an angle that is more than 90 degrees. (Bigger angle)
Name 5 types of polygons?
Square, rectangle, triangle, pentagon, hexagon, trapezoid, parallelogram.
Is this shape a quadrilateral? (Miss Shorey will draw the shape on board).
What is this shape?
Parallelogram
All my shapes must have four sides. All my shapes have angles. What rule am I?
Quadrilaterals
I have two sets of parallel sides. I have 4 angles and 4 sides. My opposite sides are equal AND parallel.
Parallelogram
How many degrees is a right angle?
90 degrees, makes a square rather than a curve
Name this polygon. (Miss Shorey will draw the shape)
Irregular Pentagon.
What shape is this quadrilateral? (Miss Shorey will draw shape on board)
Trapezoid
My rule is that I form a 90 degree angle.
Right angle
2 Parter!!!!
1) I have 5 sides. I have 5 angles.
2) I have 6 sides. I have six angles.
Pentagon
Hexagon
RIDDLE!
What has to be broken before you can use it?
An egg
What does it mean if a shape if irregular?
Example- An irregular pentagon.
Irregular means that the shape does not have equal sides.
An irregular pentagon would have five sides but they would not be equal.
Name 4 different types of quadrilaterals.
Square, rectangle, parallelogram, trapezoid, rhombus.
1) My rule is that I am an angle that is LESS THAN 90 degrees.
2) My rule is that I am an angle that is MORE THAN 90 degrees.
1) Acute Angle
2) Obtuse Angle
I have 1 set of parallel sides. I have 4 angles and 4 sides. I am also a quadrilateral.
Trapezoid
What is the difference between a 2-Shape and a 3-D Shape? Name three types of 3-D shapes.
A 2-D shape is a flat object. It has length and width but no height and a 3-D shape is a shape in space. It has length, width and height.
3-D Shapes- Sphere, cylinder, pyramid, rectangular prism, triangular prism, cone.