Plane Geometry |
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AABC adjacent angles altitude angle AOB angles are equal apothem arc AC base called chord circumference circumscribed COROLLARY corresponding sides decagon diagonals diameter divide equal angles equal circles equal respectively equiangular equiangular polygon equidistant equilateral triangle equivalent EXERCISE exterior angle figure Find the area Find the locus geometry given circle given line given point given square Given the triangle greater hexagon hypotenuse intersecting isosceles triangle LAOB line drawn measured by arc mid-point number of sides obtuse opposite sides parallel lines parallelogram perigon perimeter plane PROBLEM produced Proof Prop proportional prove Q. E. D. PROPOSITION quadrilateral radii ratio rectangle reflex angle regular inscribed regular polygon right angle right triangle secant segments semicircle similar polygons straight angle straight line subtended tangent THEOREM third side trapezoid triangle ABC vertex vertices