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 Trigonometry |
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Página 22
... AK CB are equal to one another ; and the triangle ABC is therefore equilateral , and it is described upon the given straight line AB . Which was required to be done . PROP . II . PROB . From a given point to draw a straight line ...
... AK CB are equal to one another ; and the triangle ABC is therefore equilateral , and it is described upon the given straight line AB . Which was required to be done . PROP . II . PROB . From a given point to draw a straight line ...
Página 50
... figure ABCD is equal to the whole parallelogram KFLM ; therefore the parallelogram KFLM has been described equal to the given rectilineal figure ABCD , having the angle FKM equal to the given angle E. Which was to be done . Cor .
... figure ABCD is equal to the whole parallelogram KFLM ; therefore the parallelogram KFLM has been described equal to the given rectilineal figure ABCD , having the angle FKM equal to the given angle E. Which was to be done . Cor .
Página 52
Therefore , the whole square BDEC is equal to the two squares GB , HC ; and the square BDEC is described upon the straight line BC , and the squares GB , HC upon BA , AC : wherefore the square upon the side BC is equal to the squares ...
Therefore , the whole square BDEC is equal to the two squares GB , HC ; and the square BDEC is described upon the straight line BC , and the squares GB , HC upon BA , AC : wherefore the square upon the side BC is equal to the squares ...
Página 64
... and BD is also equal to the rectilineal figure A ; therefore the rectilineal figure A is equal to the square of EH : Wherefore a square has been made equal to the given rectilineal figure A , viz . the square described upon EH .
... and BD is also equal to the rectilineal figure A ; therefore the rectilineal figure A is equal to the square of EH : Wherefore a square has been made equal to the given rectilineal figure A , viz . the square described upon EH .
Página 81
The opposite angles of any quadrilateral figure described in a circle , aré together equal to two right angles . > Let ABCD be a quadrilateral figure in the circle ABCD ; any two of its opposite angles are together equal to two right ...
The opposite angles of any quadrilateral figure described in a circle , aré together equal to two right angles . > Let ABCD be a quadrilateral figure in the circle ABCD ; any two of its opposite angles are together equal to two right ...
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Términos y frases comunes
ABC is equal ABCD altitude angle ABC angle BAC arch base bisected Book called centre circle circle ABC circumference coincide common cylinder definition demonstrated described diameter difference divided double draw drawn equal equal angles equiangular Euclid exterior angle extremity fall fore four fourth given given straight line greater half inscribed interior join less Let ABC magnitudes manner meet multiple opposite parallel parallelogram pass perpendicular plane polygon prism produced PROP proportionals proposition proved radius ratio reason rectangle contained rectilineal figure right angles segment shewn sides similar sine solid square straight line taken tangent THEOR thing third touches triangle ABC wherefore whole