Plane Geometry by the Suggestive Method

ABCD acute angle alternate-exterior angles altitude angles are equal apothem Apply Theo Auth bisector bisects central angles chord circumference Converse of Theo Corollary diagonals diameter divided double the number draw a line drawn equal angles equal circles equal respectively equals the product equals the ratio equals two right equiangular equiangular polygon EXERCISES exterior angle follows regarding four right angles given line greater homologous hypotenuse included angle inscribed angle intercepted arc interior intersect isosceles triangle line perpendicular lines are cut lines are parallel locus mean proportional method middle point number of sides oblique lines parallel lines parallelogram perimeters Problem Prop radius rectangle regular inscribed polygon regular polygon rhombus right triangle Scholium secant similar polygons straight line tangent THEOREM IV THEOREM VIII Topics for Definition trapezoid triangle equals triangles are equal triangles are similar unequal vertex