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    E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_10\Chap_10
                     \ 10-Nov-2025  Bharat Arora   Proof-8                                    Reader’s Sign _______________________ Date __________

                    Finding Area using Geo Dotted Paper

                    We can also find the area of a figure using geo dotted paper. Each unit on the geo
                    dotted paper measures 1 cm. So, each square on it has a side of 1 cm and has an

                    area of 1 sq. cm.

                    example 3. Find the area of these shapes. Note that each square has a side equal to
                    1 cm.

                                 a.                            b.                             c.

                    Solution.  We can count the number of squares covered by each shape and find the

                    area as shown below.

                                 a.                            b.                             c.

                                     Area = 9 sq. cm               Area = 7 sq. cm                Area = 11 sq. cm

                                                                                                          21 st
                              Activity                                                                   Century   #Creativity
                                                                                                          Skills

                       Using  a  ruler, copy  this  shape,  so  it  reflects  on  the
                       right of the mirror line. Then,  find the  total  area of                                     1 cm
                       this shape. Also, find the perimeter of the complete
                       shape.

                       The total area of this shape = ______ sq. cm.
                       The perimeter of the complete shape = ______ cm.

                                                                                                                 175
                                                                                            Perimeter and Area

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