Short Answer TypeA wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?
A wheel rotates through an angle of 
 radians in one second. How many revolutions will it make in 5 minutes?
The difference between two acute angles of a right angled triangle is 
 Express the angles in: (a) degrees (b) radians.
Find the degree measure of the angle subtended at the centre of a circle of radius 100
cm by an arc of length 22 cm (Use 
).
Length of the circular wire of radius 7.5 cm
Which is cut and bent = 
∴  For the circular hoop, 
Let the angle be 
 radians, Using, 
 we have
          
Hence, the angle subtended at the centre is 
An athlete runs 4 times around a circular running path to describe 1760 metres.
What is the angle in (i) radians, (ii) degrees subtended at the centre of the circle, when
he had run a distance of 308 metres? Â 
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