How many squares are needed to continue this pattern?
Weekly Problem 9 - 2006
What fraction of the area of the rectangle is shaded?
Weekly Problem 33 - 2006
A square is inscribed in an isoscles right angled triangle of area $x$. What is the area of the square?
Weekly Problem 3 - 2007
What is the ratio of the area of the table covered twice, to the uncovered area?
Weekly Problem 29 - 2008
The seven pieces in this 12 cm by 12 cm square make a Tangram set. What is the area of the shaded parallelogram?
Seven small rectangular pictures have one inch wide frames. The frames are removed and the pictures are fitted together like a jigsaw to make a rectangle of length 12 inches. Find the dimensions of the pictures.
The diagram shows a large rectangle composed of 9 smaller rectangles. If each of these rectangles has integer sides, what could the area of the large rectangle be?
Weekly Problem 3 - 2009
What fraction of the area of this regular hexagon is the shaded triangle?
Here's a neat trick you can do with an 11 by 11 square...
What is the total area enclosed by the three semicicles?
