need help! > Trig problem

[Tascja]

The question is
"Express the angle that the second hand on a watch turns in 20s in degree measure."

I know that the arc of the triangle on the circle will be 20 but then im not sure what to do next... can someone please explain??

 

[stapel]

Hint: How many seconds in a minute? How many degrees in a circle? So how many degrees would be swept in twenty seconds?

Eliz.

 

[Tascja]

therefore would it be 120 degrees?

{ 360/60 = 6

20*6 = 120 }