Elements of Plane Geometry, Part 1

ABCD AC and CB alternate angles altitude angle ABC angle ACB antecedent base bisect BOOK centre chord circle circumference common consequent const construct contained demonstrated describe diagonal diameter difference distance divided double draw equal equal Prop exterior angle extremities fall feet figure Find the area formed four Geometry given line given point gles greater Hence hypothenuse inches included angle inscribed interior intersect Join join the points length less magnitudes manner means measured by half meet multiply opposite angle opposite sides parallel parallelogram perpendicular polygon PROBLEM produced Prop proportional PROPOSITION Prove quadrilateral radius ratio rectangle remain right angles right-angled triangle segment sides similar square straight line student taken tangent third three sides triangle ABC whole