Spark Plug Write 3 examples of a triangle you see in the room. Write 3 examples of a circle you see in the classroom. Write 3 examples of a rectangle you see in the classroom.

Names of 2D Figures 3 Triangle10 decagon 4 Rectangle11 hendecagon 5 Pentagon12 dodecagon 6 Hexagon 7 Heptagon 8 Octagon 9 Nonagon

3-D Shapes Pyramids  Only has one base  Named by it’s base ( put “al” on end if it ends with “gon and “ar “ if it ends with “angle”)  Comes to a point  Triangles for sides Prisms  Named by the two identical bases ( put “al” on end if it ends with “gon and “ar “ if it ends with “angle”)  Rectangles for sides  Has a flat top and bottom

CRCT Formula Sheet:

Area Formula review: Rectangle: A= l x w Triangle: A= ½ bh You can find the surface area of any 2 or 3 dimensional figure by “decomposing” it

Decompose to find the area:

Let’s try:

Try this one:

Last one:

Spark Plug: Find the surface area.

VOLUME: Prisms: V= Bh (big B means to find the area of the base) V= l x w x h for rectangular prisms ONLY Pyramids: V= 1/3Bh (big B means to find the area of the base)

Let’s try these:

Try some of these:

Just a few more:

Now try this one: