Of Rectangular Prisms. Surface Area What does it mean to you? Does it have anything to do with what is in the inside of the prism? VOLUME (not surface.

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Presentation transcript:

of Rectangular Prisms

Surface Area What does it mean to you? Does it have anything to do with what is in the inside of the prism? VOLUME (not surface area) is the amount a shape can hold inside. Surface area is found by finding the area of all the sides and then adding those answers together.

Surface Area of Rectangular Prisms What is area? The amount of square units that will COVER a shape. How will the answer be labeled? Units 2 because it is area!

Rectangular Prism How many faces are on here? 6 Find the area of each of the faces. A B C 4 5 in 6 Do any of the faces have the same area? A = 5 x 4 = 20 x 2 =40 B = 6 x 5 = 30 x 2 = 60 C = 4 x 6 = 24 x 2 = 48 If so, which ones? 148 in 2 Opposite faces are the same. Find the SA

Cube Are all the faces the same?YES 4m How many faces are there? 6 Find the surface area of one of the faces. A 4 x 4 = 16Take that times the number of faces. X 6 96 m 2

Now It’s YOUR Turn! I think I can!