- The area of the circle is 154 cm². The radius of the circle is
- 7cm
- 14cm
- 3.5cm
- 17.5cm
- If angle of sector is 60°, radius is 3.5 cm then length of the arc is
- 3cm
- 3.5cm
- 3.66cm
- 3.8cm
- The area of a quadrant of a circle whose circumference is 22 cm, is
- 11/8
- 77/2
- 77/4
- 77/8
- If θ is the angle in degrees of a sector of a circle of radius V, then area of the sector is
- πr²θ/180
- πr²θ/360
- 2πrθ/180
- 2πrθ/360
- A horse is tied to a peg at one corner of a square shaped grass field of side 15 m by means of a 7 m long rope. The area of that part of the field in which the horse can graze, is
- 77
- 77/2
- 154
- 77/4
- The area of the circle whose diameter is 21 cm is
- 346.5cm²
- 37.68cm²
- 18.84cm²
- 19.84cm²
- The area of the sector of a circle with radius 6 cm and of angle 60° is
- 9.42
- 37.68
- 18.84
- 19.84
- The area of a circle whose circumference is 22 cm, is
- 11
- 38.5
- 22
- 77
- The area of a circle is 154 cm.square. Its diameter is
- 7
- 14
- 21
- 28
- The length of the minute hand of a clock is 14 cm. The area swept by the minute hand in 5 minutes is
- 153.9
- 102.6
- 51.3
- 205.2
- 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
- 35cm
- 10cm
- 21cm
- 28cm
- The area of the circle that can be inscribed in a square of side 6 cm, is
- 18π cm²
- 12π cm²
- 9π cm²
- 14π cm²
- 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
- 5
- 7
- 10
- 14
- The perimeter (in cm) of a square circumscribing a circle of radius a cm, is
- 8a
- 4a
- 2a
- 16a
- If the area of a circle is numerically equal to twice its circumference, then the diameter of the circle is
- 4units
- n units
- 8units
- 2units
- If the circumference of a circle is 352 metres, then its area in square metres is
- 5986
- 6589
- 7952
- 9856
- If the sum of the circumferences of two circles with radii Rj and R2 is equal to the circumference of a circle of radius R, then
- R1 + R2 = R
- R1 + R2 > R
- R1 + R2 < R
- nothing definite can be said about the relation among R1, R2 and R.
- If the circumference of a circle and the perimeter of a square are equal, then
- area of the circle = area of the square
- area of the circle > area of the square
- area of the circle < area of the square
- nothing definite can be said about the relation between the areas of the circle and square
- Area of the largest triangle that can be inscribed in a semi-circle of radius r units is
- r² sq. units
- (1/2)r² sq. units
- 2r² sq. units
- √2 r² sq. units
- In the given figure, three sectors of a circle of radius 7 cm, making angles of 60°, 80° and 40° at the centre are shaded. The area of the shaded region (in cm2) is
- 77
- 154
- 44
- 22
- If the difference between the and the radius of of a circle is 37 cm, then 22 using π = 22/7 the circumference (in cm) of the circle is
- 154
- 44
- 14
- 7