Primary Elements of Plane and Solid Geometry: For Schools and Academies

ab² ABCDEF Algebra allel alternate angles altitude angle BAC angles ABC apothegm Arithmetic axis base multiplied bisect chord circumference cone consequently convex surface cylinder described diameter divided draw equal and parallel equal Theo equal to half equivalent former State Supt frustum Geometry half the product Hence hypotenuse included angle inscribed angle intersection isosceles isosceles triangle Let ABCD let fall linear unit measured by half mutually equiangular mutually equilateral number of equal number of sides one-third the product parallel planes parallelogram pendicular perpendicular perpendicular distance PINNEO'S proportion proved Public Inst quadrilateral rectangle regular inscribed regular polygon regular pyramid right angle right parallelopiped right-angled triangle Schol semicircle side BC slant hight solidity is equal sphere is equal square straight line THEOREM third plane trapezoid triangle ABC triangular pyramid upper base vertex zoid