Right-Angled Request
Weekly Problem 26 - 2006
How many right angled triangles are formed by the points in this diagram?
Weekly Problem 26 - 2006
How many right angled triangles are formed by the points in this diagram?
Weekly Problem 1 - 2014
The diagram shows a regular hexagon inside a rectangle. What is the sum of the four marked angles?
Weekly Problem 53 - 2007
The diagram shows a regular pentagon and regular hexagon which overlap. What is the value of x?
Weekly Problem 13 - 2008
The diagram shows three squares drawn on the sides of a triangle. What is the sum of the three marked angles?
Weekly Problem 23 - 2008
A triangle has been drawn inside this circle. Can you find the length of the chord it forms?
Mark writes four points on a line at different lengths. What is the distance between the two points furthest apart?
How many edges of a cube need to be coloured black to mean every face has at least one black edge?
A wooden cube with edges of length 12cm is cut into cubes with edges of length 1cm. What is the total length of the all the edges of these centimetre cubes?