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The area of a sector is given by :
Area of sector,
Hour hand rotates through in one minute :
Angle described by hour hand in 1 hour
Angle described in 1 min
A region in the circle, bounded by an arc and a chord, including the arc and the chord is :
Segment is the region bounded by an arc and a chord including the arc and chord.
Perimeter of a quadrant of a circle of radius r is equal to :
Perimeter of quadrant of a circle
Area of a quadrant of a circle of radius r is given by :
Area of quadrant
If a circle of radius 7 cm is divided into 10 equal parts, then the area of each sector is :
Area
Area of each sector
If the diameter of the wheel of a cycle is 7 cm, then its area is :
Area
If the radius of a circle is doubled, then area of the circle becomes :
Area will be four times.
The ratio of the area and circumference of a circle of radius 4 cm is :
Area
circumference
Ratio
The diameter of a circle of area \(154\ cm^2 \) is:
Diameter
If \(100\ \pi\ cm^2 \) is the area of a circle, then its circumference is :
circumference
The area of a circle of circumference \(12\pi \) is:
Area
If the area of a sector of a circle of radius \(6\ cm \) is \(9\ \pi\ cm \), then the angle subtended at the centre of the circle is :
Area
If a copper wire of length 88 cm is bent in the form of a circle, then the radius of the circle is :
The area of the circle that can be inscribed in a square of side 6 cm is
Radius
Area
The area of the square that can be inscribed in a circle of radius 8 cm is :
Side
Area
The radius of a circle whose circumference is equal to the sum of the circumferences of the two circles of diameters 36 cm and 20 cm is :
The diameter of a circle whose area is equal to the sum of the areas of the two circles of radii 24 cm and 7 cm is :
Area
Diameter
If the perimeter and the area of a circle are numerically equal, then the radius of the circle is
A steel wire, when bent in the form of a square, enclosed an area of \(121\ cm^2\). The same wire is bent in the form of a circle. The area of the circle is :
A race track is in the form of a ring whose inner and outer circumferences are 437 m and 503 m respectively. The width of the track is :
Two circles touch internally. The sum of their areas is \(116\pi\ cm^2 \) and the distance between their centres is \(6\ cm \). The radii of the circles are
If the sum of the areas of two circles with radii \(R_1 \) and \(R_2 \) is equal to the area of a circle of radius \(R \), then :
If the sum of the circumferences of two circles with radii \(R_1 \) and \(R_2 \) is equal to the circumference of a circle of radius \(R \), then :
If the circumference of a circle and the perimeter of a square are equal, then :
Side
Area
Area of the largest triangle that can be inscribed in a semiâ€“circle of radius r units is :
Diameter
Area
If the perimeter of a circle is equal to that of a square, then the ratio of their areas is :
It is proposed to build a single circular park equal in area to the sum of areas of two circular parks of diameters 16 m and 12 m in the locality. The radius of the new park would be :
Area
The length of the minute hand of a clock is 6 cm. The area swept by the minute hand in 10 minutes is :
Area