the circumference of a circle is 31.4 cm find the radius and the area of the circle take equal to 3.14
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Circumference of circle 2πr = 31.4 cm
⇒ r = 31.4/2π = 31.4/2*3.14 = 5 cm
radius of circle = 5 cm
Area of circle = πr² = 3.14*5² = 3.14*25 = 78.5 cm²
⇒ r = 31.4/2π = 31.4/2*3.14 = 5 cm
radius of circle = 5 cm
Area of circle = πr² = 3.14*5² = 3.14*25 = 78.5 cm²
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