Substituting Solution to Equation
Pythagoras
Area Problem
Square Roots to One d.p.
London Eye: draw the height function
The points on the right show how high a capsule at a certain time during rotation. At zero minutes, the capsule is 15 m above the ground. At 30 minutes, the capsule has returned to its starting place.[br][br]The highest point is 135 m above the ground.[br][br]In between, we have a quarter way around and three quarters way around.[br][br]How are these points joined up?
Walker
Put the walker back together again!