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Perimeter of the composite figure = AB + BC + CD + DE + EF + FA, Now,, From the figure,, FE = AB + CD., FG = AB = 6 m and GE = CD = 3 m, FE = FG + GE, %3D, = 6 +3 = 9 m, %3D, %3D, = (6 + 11 + 3 + 3 + 9 + 14) m, = 46 m, %3D, A Exercise 9.1, 1. Solve the following., a) The length of a rectangle is 2 m and its breadth is 1 m. Find its, perimeter., 46 cm, b) Each side of a square tile is 46 cm. Ablue string is placed along the, sides of the square tile. What is the total length of the string?, 1m, c) Nine square tiles are placed as shown to form a large square. The, side of each tile is 1 m. What is the perimeter of the larger square?, 1m, d) Each figure below is made up of five 2 cm squares. Find the, perimeter of each figure., e) In AABC, length of AB = 6 cm, BC =7 cm and AC = 9 cm. Find the, perimeter of the triangle., %3D, %3D, 2. Find the perimeter of each figure. (All lines meet at right angles.), b), 2 cm 2 cm 2 cm 2 cm, 6 cm, a) A., 2 cm, 2 cm, 2 cm, 2 сm, 9 cm, 2 cm, 2 cm, 2 cm, Make children observe through various composite shapes that the sides that lie in the, interior of the figures from which the composite igures are formed are not included in, calculating the perimeter of these shapes. For example, the length of the dotted sides will, not be included in calculating the perimeter., 3 cm, Teaching, Tip