Net Review Opening Routine The net at the right folds into the cube shown beside it. Which letters will be on the top and front of the cube if A is folded

Net ReviewOpening Routine

The net at the right folds into the cube shown beside it. Which letters will be on the top and front of the cube if A is folded to the back?

Show all work for credit!

E becomes the top and C becomes the front.

INTRODUCTION• Objective: To recognize polyhedra and their parts. To visualize cross sections of space figures. To find the surface area of prisms and cylinders.

• Essential Question: How do you find the surface area of any prism and cylinder?

A polyhedron is a space figure, or three dimensional figure, whose surfaces are polygons.

Each polygon is a face of the polyhedron.

An edge is a segment that is formed by the intersection of two faces.

A vertex is a point where three or more edges intersect.

Euler’s Formula (3-D): The sum of the number of faces (F) and vertices (V) of a polyhedron is two more than the number of its edges (E).

F + V = E + 2

Euler’s Formula (2-D): (F) is the number of regions formed by the vertices (V) linked by (E) segments

F + V = E + 1

A cross section is the intersection of a solid and a plane. (Very thin slice of solid.

A prism is a polyhedron with two congruent, parallel faces, called bases. The other faces are lateral faces. You name a prism using the shape of its bases.

An altitude of a prism is a perpendicular segment that joins the planes of the bases. The height h of a prism is the length of an altitude.

The lateral area (L.A.) of a prism is the sum of the areas of the lateral faces. The surface area (S.A.) is the sum of the lateral area and the area of the two bases.

I DoWhat is Ms AJ thinking?

Cross Section forms a Rectangle

Cross Section forms a Rectangle

We DOWhat should We be thinking?

Got It! Pagina 714 #1a,b

Got It! Pagina 715 #2a, b

Got It! Pagina 716 #3a,b,c

Got It! Pagina 719 #4a,b

Got It! Pagina 720 #5


Got It! Pagina 728 #2a,b,c


Got It! Pagina 732 #4a

You DoWhat should You be thinking?

Lesson Check! Pagina 716 #1-3

Lesson Check! Pagina 720 #1



Exit Ticket/ConclusionDo you remember?

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Net Review Opening Routine The net at the right folds into the cube shown beside it. Which letters will be on the top and front of the cube if A is folded