How many right-angled triangles are there with sides that are all
integers less than 100 units?
A tennis ball is served from directly above the baseline (assume
the ball travels in a straight line). What is the minimum height
that the ball can be hit at to ensure it lands in the service area?
Which is a better fit, a square peg in a round hole or a round peg
in a square hole?
ABCDEFGH is a 3 by 3 by 3 cube. Point P is 1/3 along AB (that is
AP : PB = 1 : 2), point Q is 1/3 along GH and point R is 1/3 along
What is the area of the triangle PQR?