- Messages
- 76
- Reaction score
- 55
- Points
- 28
but but .. it said, "the plate was made by removing a triangular piece"... or somethin like that! ='[ .. I wrote 146 .. then re read the question and changed both answers I thin *sobsniffcry*
I'm sorry but the plate was not made by removing the triangular piece. In fact, it was not a triangular 'piece' at all - it was a hint. The dotted lines merely showed the radii of the circular plate which met at the ends of chord AB, making it easier for the candidates to use trigonometry to determine its length.