Circumference of the circle is equal to 88 cm. What is the ratio of area to its circumference? Take
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Circumference of the circle is equal to 88 cm. What is the ratio of area to its circumference? Take
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O is the centre of the circle. What is the area of the shaded region if radius of the circle is 18 cm. Take
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Ratio of radii of two circles is 1:16. What is the ratio of their areas?
O is the common centre of two concentric circles and radius of the bigger circle is 14 cm. Area of the smaller circle is half of the bigger circle. What is the radius of the smaller circle?