CIRCLES B4

Find the value of e in the following figure.

solution

Angle at the centre = 2 x (angle at the circumference)

= 2 x (7e)

=14e

Angle 4e and 14e are opposite angles.

Therefore 14e + 4e = 360

18e = 360

18e = 360 

18        18

e = 20⁰          

Hence e = 20⁰