Schultze and Sevenoak's Plane Geometry

altitude angle equal angle formed angle-bisectors annexed diagram apothem bisector bisects central angle chord circumference congruent construct a triangle decagon diagonals diagram for Prop diameter Draw drawn equiangular equiangular polygon equilateral triangle exterior angle figure find a point Find the area Find the length Find the radius geometric given angle given circle given line given point given triangle HINT homologous sides hypotenuse inscribed intersecting isosceles triangle joining the mid-points LAOB line joining mean proportional median opposite sides parallelogram perimeter perpendicular perpendicular-bisector point equidistant PROBLEM produced PROPOSITION prove Proof Q. E. D. Ex quadrilateral ABCD radii ratio rectangle reflex angle regular polygon rhombus right angle right triangle secant segments similar polygons similar triangles straight angle straight line tangent THEOREM transform trapezoid triangle ABC triangle are equal vertex angle vertices