Concrete Geometry: Introductory to Formal Plane Geometry

ABCD adjacent angles altitude angle ABC angle equal angle formed answer base bisect called centre chord circle circumference with centre construct an angle contains corresponding sides diagonals diameter difference distance divide Draw a circumference Draw a line Draw a triangle drawn equal equilateral triangle EXERCISES exterior extremities figure four Give the reason given half hexagon hypotenuse inches inferred intercepted interior angles intersecting kind length letter mark Mark the point Measure median meet meters method Name number of degrees octagon opposite parallelogram perimeter perpendicular perpendicular bisectors placing plane polygon principle protractor quadrilateral radii radius radius equal ratio rectangle regard regular hexagon regular polygon relation respectively rhombus right angle right triangle secant similar polygons square Statement straight line surface Take tangent third three angles trapezoid triangle ABC units vertex vertices Write a definition