Sir, - The only explanation for the triangle containing 184 degrees must be that it fell off a lorry in the vicinity of Roscommon.
Once upon a time there was a not too intelligent interviewer who had the answers to his questions written on a piece of paper. He asked one young man at what temperature water boils. The student confidently answered 100 degrees. The interviewer insisted it boiled at 90 degrees. The student argued the point until the interviewer consulted his list of answers and apologised, saying it was a right angle that boiled at 90 degrees.
Consider for next year the definition of parallel lines as lines that never meet. Draw two lines on a football that never meet and yet are non parallel. Fell off a lorry, I suppose! Yours, etc.,
Dublin 13.