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 ?

In which quadrant 45^o lies ?

The radian measure of 25^o is

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

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 ?

The angle  between the minute hand and the hour hand of a clock at 10.40 pm is

In which quadrant 500^o lies ?

Length of an arc of a circle of radius 3cm, if the angle subtended at the centre is 30^o

The radian measure of 240^o is

Find in radians the angle of a regular octagon.