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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
Ex 11.3, 5 Important
Ex 11.3, 6
Ex 11.3, 7 Important
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
Ex 11.3, 15 You are here
Ex 11.3, 16 Important
Ex 11.3, 17 Important
Last updated at March 23, 2023 by Teachoo
Ex 11.3, 15 Find the circumference of the inner and the outer circles, shown in the adjoining figure? (Take π = 3.14) Outer circle Radius of outer circle = R = OB = 19 m Circumference of outer circle = 2𝜋R = 2 × 3.14 × 19 = (2 × 314 × 19)/100 = 628/100 × 19 = 11932/100 = 119.32 m Inner circle Radius of inner circle = 19 − 10 = 9 cm Circumference of outer circle = 2𝜋r = 2 × 3.14 × 9 = 2 × 314/100 × 9 = 628/100 × 9 = 5652/100 = 56.52 m ∴ Circumference of outer circle is 119.32 m & Circumference of inner circle is 56.52 m