Can you find the words that fit the letters in these sentences?

One Straight Cut

The problems below are 'Dissection Puzzles'. These involve making the least number of cuts through a shape so that all the pieces can be re-arranged to make another shape.

Dissection problems are very old. They were teasing brains all over ancient China many thousands of years ago. They led to the invention of the 'Tangram Puzzle' with it's myriad of shapes to create and solve.

Find the straight line that would cut the shapes below and allow the pieces to be re-arranged to form a square.
Click the mouse to mark each end of the cut. Click again to try another line if you don't get it right.