The circular system of 104o 36’ is
900 π radians
900/523 π radians
523/900 π radians
The angle between the minute hand and the hour - hand of a clock at 4 : 40 PM is
40o
45o
60o
75o
A horse is tied to a post by a rope. If the horse moves along a circular path always keeping the rope tight and describes 88 metres when it has traced out 72o at the centre. Then the length of the rope is :
35 m
60 m
70 m
80 m
Taking the sun’s distance as 1.4950 x 108 km and the angle subtended by the sun at a point on earth as half a degree. Approximately, the diameter of the sun is
1.304637 x 10 7 km
1.304637 x 10 6 km
1.403367 x 10 6 km
1.340637 x 10 6 km
In a circle of diameter 40 cm, the length of a chord is 20 cm. The length of the minor arc of the chord is
20 1/21 cm
20 20/21 cm
20 3/5 cm
21 20/21 cm
In which quadrant 45o lies ?
I
II
III
IV
The radian measure of 240o is
(4π) c
If the arc of the same length in two circles subtend angles 75o and 120o at the centre, then the ratio of their radii is
5 : 8
4 : 5
8 : 5
3 : 5
The angle between the minute hand and the hour hand of a clock at 10.40 pm is
80o
The circular measure of two angles of a triangle are 1/2 radian and 1/3, radian. What is the number of degrees in the third angle ?
132o 16' 21 9/11"
- 132o 16' 21 9/11"
123o 16' 21"
None of these
