problem
Another triangle in a triangle
Can you work out the fraction of the original triangle that is covered by the green triangle?
Can you work out the fraction of the original triangle that is covered by the green triangle?
Stick some cubes together to make a cuboid. Find two of the angles by as many different methods as you can devise.
Can you make matrices which will fix one lucky vector and crush another to zero?
Explore the meaning behind the algebra and geometry of matrices with these 10 individual problems.