Puzzle Trio 9
||The diagram is of an irregular pentagon with all 5 of its diagonals drawn in.
How many distinct triangles (not necessarily different) can be found, using only the lines (or parts of lines) in the diagram?
||Alexis, Phil, Kit and Terri had a race.|
Their finishing order was 1, 2, 3, 4 with no ties.
Phil beat Terri, but was not 1st or 3rd
Alexis was just one place in front of Terri.
What was their finishing order?
||It is planned to make a flower bed in the shape
of a rectangle with a semi-circle attached at one edge.
It will have a perimeter of 10 metres.
What is the maximum area it could have?