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Ex 11.3
Ex 11.3, 1 (b) Important
Ex 11.3, 1 (c)
Ex 11.3, 2 (a) Important
Ex 11.3, 2 (b) Important
Ex 11.3, 2 (c)
Ex 11.3, 3
Ex 11.3, 4 Important
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Ex 11.3, 6
Ex 11.3, 7 Important You are here
Ex 11.3, 8
Ex 11.3, 9 Important
Ex 11.3, 10 Important
Ex 11.3, 11
Ex 11.3, 12 Important
Ex 11.3, 13 Important
Ex 11.3, 14
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Ex 11.3, 16 Important
Ex 11.3, 17 Important
Last updated at March 30, 2023 by Teachoo
Ex 11.3, 7 Find the perimeter of the adjoining figure, which is a semicircle including its diameter. Diameter = AB = 10 cm Radius = r = 𝐷𝑖𝑎𝑚𝑒𝑡𝑒𝑟/2 = 10/2 = 5 cm Perimeter of semicircle = Length of semicircle part + Length of AB = 1/2 × 2𝜋r + 2r = 𝜋r + 2r = 3.14 × 5 + 2 × 5 = 314/100 × 5 + 10 = 314/20 + 10 = 157/10 + 10 = 15.7 + 10 = 15.7 + 10 = 25.7 cm ∴ Perimeter is 25.7 cm