Angle Trisection
It is impossible to trisect an angle using only ruler and compasses but it can be done using a carpenter's square.
It is impossible to trisect an angle using only ruler and compasses but it can be done using a carpenter's square.
The planet of Vuvv has seven moons. Can you work out how long it is between each super-eclipse?
Can you work out the domino pieces which would go in the middle in each case to complete the pattern of these eight sets of three dominoes?
These rectangles have been torn. How many squares did each one have inside it before it was ripped?
Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.
Which is bigger, n+10 or 2n+3? Can you find a good method of answering similar questions?
Choose four consecutive whole numbers. Multiply the first and last numbers together. Multiply the middle pair together. What do you notice?
Can you find any two-digit numbers that satisfy all of these statements?