if area of circle is 55.4 4 cm square find its circumference is
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Let the radius of circle be R
Area of circle =π X radius of circle is
55.44 = 22/7 X R²
22/7 X R² = 55.44
R² = 55.44 X 7/ 22 X 1
R²=√17.64
R= 4.2cm
Therefore circumference of circle
= 44/7 X 4.2
= 26.4cm
Area of circle =π X radius of circle is
55.44 = 22/7 X R²
22/7 X R² = 55.44
R² = 55.44 X 7/ 22 X 1
R²=√17.64
R= 4.2cm
Therefore circumference of circle
= 44/7 X 4.2
= 26.4cm
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