Find the volume of the following prisms: Math 7 MIT Grace Wilday Junior High School “Raise the Praise”

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Presentation transcript:

Find the volume of the following prisms:

Math 7 MIT Grace Wilday Junior High School “Raise the Praise”

 TLWBAT to calculate surface area of rectangular prisms by applying formulas to correctly complete at least 8 out of 10 practice problems   NJCCCS E.2  Common Core 7.G.B.6

If you remove the surface from a three- dimensional figure and lay it out flat, the pattern you make is called a net. Nets allow you to see all the surfaces of a solid at one time. You can use nets to help you find the surface area of a three-dimensional figure. Surface area is the sum of the areas of all of the surfaces of a figure expressed in square units.

The lateral faces of a prism are parallelograms that connect the bases. The lateral area of a prism is the sum of the areas of the lateral faces.

*Surface Area = 2lw + 2wh +2lh

Find the surface area of the prism. Additional Example 1: Finding the Surface Area of a Prism S = 2lw + 2wh + 2lh S = 2(7)(15) + 2(15)(9) +2(7)(9) S = S = 606 The surface area of the prism is 606 in 2. Substitute. Use the formula.

Find the surface area of the prism. Check It Out: Example 1 S = 2lw + 2wh + 2lh S = 2(8)(14) + 2(14)(10) + 2(8)(10) S = S = 664 The surface area of the prism is 664 in 2. Substitute. Use the formula. 14 in. 8 in. 10 in.

Lesson Quiz 352 ft 2 Find the surface area of each figure to the nearest tenth.

Identify the surface area of the prism with dimensions 16 ft by 9 ft by 5 ft. Closure