Plane Geometry

ABCD adjacent adjoining figure altitude Analysis approach Assume base bisector bisects Book called chord circle circumscribed common Compare Conclusion congruent Construct Determine diagonals diameter distance divide Draw drawn equal equidistant equilateral triangle extended exterior angle figure Find given greater half Hence hexagon hypotenuse Hypothesis intersect isosceles triangle joining length less limit locus mean measure median meeting mid-point Note number of sides parallel parallelogram pass perimeter perpendicular Place polygon PROBLEM Proof proportional PROPOSITION Prove pupil quadrilateral radii radius ratio Recall rectangle regular regular inscribed regular polygon represent Required respectively result right angle right triangle segment sides similar square Statement straight line studied Suggestion Supplementary Exercises tangent THEOREM third trapezoid triangle unit vertex vertices