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SAI International School
                                                    CLASS - VIII


               Mathematics
               CHAPTER-11: Mensuration
               HOME ASSIGNMENT- 3



               SUBTOPICS: Sufrace Area of Solid shapes

               1. Find the TSA of cube of side 7cm.

                        A. 294 cm  2                       B. 49 cm 2

                       C. 248 cm  2                        D. 42 cm 2



               2. Area of _____ square faces are calculated to get LSA of cube.

               3. The total surface area of a cubical box is 24 cm . The box is to be painted on 4 of
                                                                    2
               its faces. What is the area of the box to be painted?



               4.A suitcase with measures 80 cm x 48 cm x 24 cm is to be covered with a tarpaulin
               cloth. How many meters of tarpaulin of width 96 cm is required to cover 100 such
               suitcases?


                 5.A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of
               metal. How much sheet of metal is required?



               6. A company packages its milk powder in cylindrical container whose base has a
               diameter of 14 cm and height 20 cm. Company places a label around the surface of
               the container. If the label is placed 2 cm from top and bottom, what is the area of the
               label?
















               Answer:
               1.A. 294 cm  2                          2. C. 4                  3. 16 cm 2
               4. 144 m                                5. 440 m 2              6. 704 cm  2

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