Area of a circle inscribe a hexagon. Cut the hexagon into six triangles by splitting it from the center. Two opposite triangles both touch two common diameters; slide them along one so the radial edges are adjacent. They now form a parallelogram, with the hexagon sides making two opposite edges, one of which is the base, "s". Two radial edges form slanted sides, and the height, "h" is equal to its apothem (as in the Archimedes proof). In fact, we can assemble all the triangles into one big parallelogram by putting successive pairs next to each other. The same is true if we increase
A Plane Is Born on the Europa's wings and Mark puts his composite skills to the test. In part 2, he continues his flight training as he learns about climbing and descending. Nigel Marshall and Rob Cooper talk about the Pitenphol Air-camper they built at work in their lunch-hours. - You Have Control! Work on the plane continues with the Cockpit module and control yokes. Mark also receives a visit from Neville Eyre, his PFA inspector who checks to see that his work so far is air worthy. Over at Staverton Airport, it's pass the sick bag when he is introduced to "stalling". Finally,