Fill in the area formulas for the following: Circle __ Rectangle Triangle .

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Presentation transcript:

Fill in the area formulas for the following: Circle ____________________ Rectangle ________________ Triangle __________________

1.A classroom has a length of 20 feet and a width of 30 feet. If the classroom is getting a new tile floor and each tile has a length of 24 inches and a width of 36 inches, how many tiles are needed to fill the classroom? 2.If the teacher wants to put a circular table in the room with a diameter of 4 feet, about how many tiles will the table cover?

 Solids are 3-dimensional shapes that we see around us everyday. The 3 dimensions are __________, ___________, and ____________.  Important Vocabulary ◦ Base: the bottom surface of a solid object ◦ Edge: the intersection of two faces on a solid object. This is a line. ◦ Face: a flat side of a 3‐dimensional object ◦ Vertex: the point where two lines meet

 Work in groups to fill in the chart using the 3D shapes.

SolidName of Solid Shape of base # of faces# of vertices# of edges Cube Rectangular Prism Triangular Prism Cone Cylinder Sphere Square Pyramid Triangular Pyramid

 What is the difference between a cube and rectangular prism?  How are prisms and pyramids named?  What is the difference between pyramids and prisms?  What is the only solid that has none of the typical characteristics?

 1. Is this a pyramid or a prism? Based on what we’ve discussed, how would you name this solid?  2. Is this a pyramid or a prism? Based on what we’ve discussed, how would you name this solid?