The length of a minor arc is 2/9 of the circumference of the circle. Then the measure of the angle subtended by the arc at the centre of the circle is.
80o
60o
45o
30o
A wheel makes 1000 revolutions in covering a distance of 88 km. Then, the diameter of the wheel is.
14 cm
24 m
28 m
40 m
If the diameter of a semi circular plot is 14m, then find its perimeter.
36m
28m
7m
4m
A chord of a circle of radius 14 cm subtends 60o at the centre. Then, the area of the major sector is.
510 cm2
511 cm2
512 cm2
513 cm2
A blacksmith Rajesh bent a steel wire in the form of a square, encloses an area of 121 sq.cm. The same wire he bent in the form of a circle. Find the area of the circle.
150 cm2
152.5 cm2
153 cm2
154 cm2
If the perimeter and area of a circle are numerically equal, then the radius of the circle is.
2 unit
π units
4 units
7 units
A chord of a circle of radius 14cm subtends a right angle at the centre. Then, the area of the minor sector is.
156 cm2
158 cm2
160 cm2
A wheel has diameter 84cm. Find how many complete revolution must it make to cover 792 meters.
100
200
300
400
If the circumference of a circle is 66 cm, then the area of the circle is.
132 cm2
462 cm2
173.25 cm2
346.5 cm2
Find the area of a circular park whose circumference is 22 m.
11 m2
28 m2
32 m2
38.5 m2
