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Last updated at March 23, 2023 by Teachoo

Example 15 Find the perimeter of the given shape (Fig 11.32) (Take ฯ = 22/7). Here, Perimeter of given shape = 4 ร Circumference of semicircle Letโs find circumference of semi-circle Circumference of semicircle Diameter = 14 cm Radius = r = ๐ท๐๐๐๐๐ก๐๐/2 = 14/2 = 7 cm Circumference of semicircle = 1/2 ร Circumference of circle = 1/2 ร 2๐r = ๐r = 22/7 ร 7 = 22 cm Now, Perimeter of given shape = 4 ร Circumference of semicircle = 4 ร 22 = 88 cm Hence, perimeter of given shape is 88 cm