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
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
Find in radians the angle of a regular octagon.
4/3 π radian
3/4 π radian
2/3 π radian
3 π radian
The angle between the minute hand and the hour - hand of a clock at 4 : 40 PM is
40o
45o
60o
75o
The radian measure of 25o is
πc
The radian measure of 240o is
(4π) c
In which quadrant -120o lies ?
I
II
III
IV
The angle between the minute hand and the hour hand of a clock at 10.40 pm is
80o
A train is travelling on a curve of 500 mt radius at the rate of 66 k ph. Through what angle will it turn in 20 seconds ?
12o
13o
14o
15o
In which quadrant 45o lies ?
