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Area of a circle with radius __ is greater than the sum of areas of two circles of radii r cm each.
Area of a circle with radius 2r is greater than the area of two circles of radii r cm each.
If the area of a sector is of the area of the circle, then what is the central angle of the sector?
If the area of a sector is of the area of the circle, then the central angle of the sector is
What part of the circle is swept by the minute hand of a clock between the time 12:00 AM and 12:15 AM?
Angle swept by the minute hand is 90°. Hence, the part of the circle is of the circle.
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