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1.
If the circumference of a circle is 352 metres, then its area in square metres is
2.
If the area of a circle is numerically equal to twice its circumference, then the diameter of the circle is
3.
The perimeter (in cm) of a square circumscribing a circle of radius a cm, is [AI2011]
4.
The radii of two circles are 4 cm and 3 cm respectively. The diameter of the circle having area equal to the sum of the areas of the two circles (in cm) is [Delhi 2011]
5.
The area of the circle that can be inscribed in a square of side 6 cm, is
6.
The radii of two circles are 19 cm and 9 cm respectively. The radius of the circle which has circumference equal to the sum of the circumference of two circles is
7.
The area of a circle is 154 cm². Its diameter is
8.
The length of the minute hand of a clock is 14 cm. The area swept by the minute hand in 5 minutes is
9.
The area of a circle whose circumference is 22 cm, is
10.
The area of the sector of a circle with radius 6 cm and of angle 60 Degree is