Editing ConstructingAPentagon
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COLUMN_START !! Method 1 * Draw circle centre A * Draw perpendicular diameters BC and DE * Construct midpoint of AD ** label F * Construct line BF * Construct bisector of angle AFB * Label G - the intersection of bisector and AB * Draw parallel to CD through G * Label H intersection of parallel with circle * BH is one side of pentagon ** complete pentagon COLUMN_SPLIT [[[ IMG:pentagon3.png ]]] COLUMN_END COLUMN_START !! Method 2 * Draw circle centre O, radius OA * Construct 2 radii perpendicular to OA ** label OB and OC * Construct D, the midpoint of OB * Draw circle, centre D, radius DA ** label E, the intersection with OC * Draw circle, centre A, radius AE ** label F and G, the intersection with the original circle * AF and AG are two sides of the pentagon ** complete pentagon COLUMN_SPLIT [[[ IMG:pentagon4.png ]]] COLUMN_END