Can you explain the strategy for winning this game with any target?
Draw a square. A second square of the same size slides around the first always maintaining contact and keeping the same orientation. How far does the dot travel?
Can you explain how this card trick works?
Rectangles are considered different if they vary in size or have different locations.
How many different rectangles can be drawn on a chessboard?
How many of the rectangles are squares?
What happens on an n by n board?