What would be the smallest number of moves needed to move a Knight
from a chess set from one corner to the opposite corner of a 99 by
99 square board?
With one cut a piece of card 16 cm by 9 cm can be made into two pieces which can be rearranged to form a square 12 cm by 12 cm. Explain how this can be done.
A cylindrical helix is just a spiral on a cylinder, like an ordinary spring or the thread on a bolt. If I turn a left-handed helix over (top to bottom) does it become a right handed helix?
Turn the triangle of area 0.5bh into a rectangle of dimensions b
by 0.5h using the midpoints of edges. The square has side length
given by s2
= 0.5bh. There is a lot to explain here
about why the pieces fit exactly as shown.