Areas and Ratios
Do you have enough information to work out the area of the shaded quadrilateral?
Do you have enough information to work out the area of the shaded quadrilateral?
Given any three non intersecting circles in the plane find another circle or straight line which cuts all three circles orthogonally.
Stick some cubes together to make a cuboid. Find two of the angles by as many different methods as you can devise.
Match the descriptions of physical processes to these differential equations.
How do you choose your planting levels to minimise the total loss at harvest time?
Investigate the family of graphs given by the equation x^3+y^3=3axy for different values of the constant a.