Quandaries
and Queries 

Hi I am a maths teacher at a secondary school in Australia. I was hoping you could clear up a question that a fellow teacher and I disagree about! Is the term supplementary angles only applicable to 2 angles (ie. a pair of angles) or can it be used when talking about 3 or more angles that add to make 180 degrees? Thanks Rosemary 

Hi Rosemary, I checked four sources.
My conclusion is that supplementary is only applicable to two angles. Penny 

