This is a tricky trapezium circle question, a Geometry A question about finding the area of a circle which has a trapezium draw inside it, with some hints in case students get stuck. Brings in ...

AO and OC are both radii of the circle. Length AO = Length OC Draw the line OB. It creates two triangles OCB and OAB. These share the length OB.

Go through the circle theorems with your class then get them to use their newly found knowledge when calculating the missing angles on these logos for the embroidery machine. You'll also receive ...