Label this plum tree graph to make it totally magic!
Find all the ways of placing the numbers 1 to 9 on a W shape, with
3 numbers on each leg, so that each set of 3 numbers has the same
A 2-Digit number is squared. When this 2-digit number is reversed
and squared, the difference between the squares is also a square.
What is the 2-digit number?
Triangle ABC is an equilateral triangle and the
three lines marked with arrows in the diagram are parallel. If the
perpendicular distances between the parallel lines are 1 unit and 2
units then calculate the length of the sides of the triangle.
Suppose the distances between the parallel lines are a
units and b units then what is the length of the sides of