1.

6.7.Find the circumference of a circle with diameter 35 cm. (UseFind the area of a circle whose circumference is 22 cmTt-

Answer»

The solution for 1st question - Diameter = 35 cm Circumference = 2πr or πd = 22/7 × 35 = 22 × 5 (Since, 7 × 5 = 35) = 110 cm

The answer for 2nd question - circumference = 22 diameter = C ÷ π = 22 ÷ 22/7 = 22 × 7/22 = 7 (Since 22 ÷ 22 = 1)radius. = 7/2 = 3.5 Area of the circle = πr² = 22/7 × 3.5 × 3.5 = 22/7 × 7 = 22 cm² (As we cut 7 and 7)

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