I divide a rectangle in Three parts and can build a quadrant with this parts. How shall I dissect the rectangle?
Using exactly three matchsticks, can you divide the area into two equal parts?
The 2 diagonals of this rectangle divide it into 4 triangles.
If the area of the shaded region is 42, then what is the area of the rectangle?
A square is in the first quadrant, as shown, with its sides extending to points on the x-axis of (3, 0), (5, 0), (7, 0) and (13, 0). What is the area of the square?
