Question

The minute hand of a clock is 10 cm long. How far does the tip of the hand move in 20 minutes?

Solution

Correct option is

 

The minute hand moves through 120o in 20 minutes or moves through  radians.   

Since the length of the minute hand is 10 cm, the distance moved by the tip of the hand is given by the formula  

            

SIMILAR QUESTIONS

Q2

If π/2 < α < π, then the expression  is equal to  

 

Q3

If 0 < θ < π/2 and sin θ + cos θ + tan θ + cot θ + sec θ + cosec θ is equal to 7, then sin 2θ is a root of the equation

Q4

 then tan θ1 tan θ2 tan θ3 tan θ4 is equal to

Q5

 are in

Q6

yz + zx + xy is equal to

Q7

Value of the determinant

      

Q8

x + y + z is equal to

Q9

Find the radian measure corresponding to –37o30’.

Q10

A rail road curve is to be laid out on a circle. What radius should be used if the track is to change direction by 25o in a distance of 40 metres?