The Angle At The Centre Is Double The Circumference Angle (Circle Theorem Example)

This video will explain to you the circle theorem that the angle at the centre is double the angle made on the circumference of the circle. This basically means if you have an angle in the middle of the circle then its twice the size as the angle on the outside of the circle. So in the example given, you need to work out the centre angle of a circle when you have the circumference angle given as 37 degrees. So to get the centre angle just work 37 double which gives an answer of 74.