In which quadrant 800o lies ?
I
II
III
IV
The circular system of 104o 36’ is
900 π radians
900/523 π radians
523/900 π radians
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
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
In which quadrant 45o lies ?
In which quadrant 500o lies ?
The angle between the minute hand and the hour hand of a clock at 10.40 pm is
60o
45o
80o
40o
The angle in radian through which a pendulum swings and its length is 75 cm and the tip describes an arc of length 21 cm is
7/25 radians
25/7 radians
7/23 radians
25 radians
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
Length of an arc of a circle of radius 3cm, if the angle subtended at the centre is 30o
2 cm
1.75 cm
1.57 cm
1.55 cm