Determining Surface Area

And Volume Of Rectangular Solids

                    Lesson 1

Problem:                                               Formula Review

                                                                                                Surface Area of Rectangular Solid

                                                                                                                           = 2 x (Area of side 1 + Area of side 2 + Area of side 3)

                                                                                                 Volume of Rectangular Solid = Length x Breadth x Height

                                                                                                Determine the Surface Area and Volume of the Rectangular solid

Solution                   Surface Area of Rectangular solid

Step 1:                         = 2 x (Area of side 1 + Area of side 2 + Area of side 3)

= 2 x ((12 x 18) + (18 x 8) + (8 x 12))

                                                                                                 = 2 x (216 + 144 + 96)

                                                                                                 = 912 cm²

Solution                    Volume of Rectangular solid

Step 2:       = Length x Breadth x Height  

                                     = 12 x 18 x 8  

                                     = 1728 cm³ 

Solution                    The answer is:

                                                             Step 3: Surface Area of Rectangular solid = 912 cm²

Complete                          Volume of Rectangular solid= 1728 cm³

                                                            Try two practice problems:  

Determine the surface area and volume.

A.		SA: Volume:
B.		SA: Volume:

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