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Published byTyler Andrews Modified over 9 years ago
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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.
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Names of 2D Figures 3 Triangle10 decagon 4 Rectangle11 hendecagon 5 Pentagon12 dodecagon 6 Hexagon 7 Heptagon 8 Octagon 9 Nonagon
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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
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CRCT Formula Sheet:
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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
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Decompose to find the area:
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Let’s try:
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Try this one:
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Last one:
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Spark Plug: Find the surface area.
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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)
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Let’s try these:
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Try some of these:
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Just a few more:
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Now try this one:
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