Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle, and the Geometry of Solids: to which are Added Elements of Plane and Spherical TrigonometryCollins & Hannay, 1860 - 333 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 3 από τα 23.
Σελίδα 86
... semicircle is a right angle ; but the angle in o segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than u right angle . Let ABCD be a circle , of which the ...
... semicircle is a right angle ; but the angle in o segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than u right angle . Let ABCD be a circle , of which the ...
Σελίδα 246
... semicircle by which the sphere has been described . It is equal , therefore , to the circle , of which that semicircle was a part . Q. E. D. DEFINITIONS . I. ANY circle , which is a section of a sphere by a plane through its centre , is ...
... semicircle by which the sphere has been described . It is equal , therefore , to the circle , of which that semicircle was a part . Q. E. D. DEFINITIONS . I. ANY circle , which is a section of a sphere by a plane through its centre , is ...
Σελίδα 252
... semicircle , and the spheri cal angles at A and D are equal , because each of them is the inclina tion of the circle ABD to the circle ACD , 1. If AB , BC be equal to a semicircle , that is , to AD , BC will be equal to BD , and ...
... semicircle , and the spheri cal angles at A and D are equal , because each of them is the inclina tion of the circle ABD to the circle ACD , 1. If AB , BC be equal to a semicircle , that is , to AD , BC will be equal to BD , and ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABC is equal ABCD altitude angle ABC angle ACB angle BAC angle EDF arch AC base BC bisected centre circle ABC circumference cosine cylinder demonstrated diameter draw equal and similar equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given straight line greater hypotenuse inscribed join less Let ABC Let the straight line BC magnitudes meet multiple opposite angle parallel parallelogram perpendicular polygon prism PROB produced proportionals proposition Q. E. D. COR Q. E. D. PROP radius ratio rectangle contained rectilineal figure remaining angle segment semicircle side BC sine solid angle solid parallelopipeds spherical angle spherical triangle straight line AC THEOR third touches the circle triangle ABC triangle DEF wherefore