The angle between a tangent and a chord is 14degrees19'16''. If the length of the arc subtended by the chord is 5cm, what is the radius of the circle.
Help please, I really have no idea. Can you show it with illustrations, thanks!
HI
take a look at the diagram i attached .
s=5 , r=?? , $\displaystyle \theta=??$
Remember these 2 properties of circle
(1) angles of alternate segment are equal (red)
(2) angles at radius is twice the angle at circumference (blue)
Then use this formula , $\displaystyle s=r\theta$ to get r .