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Compare Areas

Which has the greatest area, a circle or a square, inscribed in an isosceles right angle triangle?

Semi-detached

A square of area 40 square cms is inscribed in a semicircle. Find the area of the square that could be inscribed in a circle of the same radius.

Diagonal Touch

Weekly Problem 21 - 2012
Two rectangles are drawn in a rectangle. What fraction of the rectangle is shaded?

Take a Square

Age 14 to 16 Challenge Level:

What is the area of the pentagon?

This tells you the area of the square and so the length of its sides.