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 TrigonometryW. E. Dean, 1851 - 317 sider |
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Resultat 1-5 av 27
Side 9
... adjacent angles equal to one another , each of the angles is called a right angle ; and the straight line which stands on the other , is called a perpendicu- lar to it . 8. An obtuse angle is that which is greater than a right angle ...
... adjacent angles equal to one another , each of the angles is called a right angle ; and the straight line which stands on the other , is called a perpendicu- lar to it . 8. An obtuse angle is that which is greater than a right angle ...
Side 18
... angles to a given straight line , from a given point in that line . Let AB be a given straight line , and C a point ... adjacent an- gles . But , when the adjacent angles which one straight line makes with another straight line are ...
... angles to a given straight line , from a given point in that line . Let AB be a given straight line , and C a point ... adjacent an- gles . But , when the adjacent angles which one straight line makes with another straight line are ...
Side 19
... angles which one straight line makes with another upon one side of it , are either two right angles , or are ... adjacent angles DBA , ABC . PROP . XIV . THEOR . If , at a point in a straight line , two other straight lines , upon ...
... angles which one straight line makes with another upon one side of it , are either two right angles , or are ... adjacent angles DBA , ABC . PROP . XIV . THEOR . If , at a point in a straight line , two other straight lines , upon ...
Side 26
... angles of the one equal to two angles of the other , each to each ; and one side equal to one side , viz . either the sides adjacent to the equal angles , or the sides opposite to the equal angles in each ; then shall the other side be ...
... angles of the one equal to two angles of the other , each to each ; and one side equal to one side , viz . either the sides adjacent to the equal angles , or the sides opposite to the equal angles in each ; then shall the other side be ...
Side 31
... angle ABC , with its adjacent exterior ABD , is equal ( 13. 1. ) to two right angles ; therefore all the interior , together with all the exterior angles of the figure , are equal to twice as many right angles as there are sides of the ...
... angle ABC , with its adjacent exterior ABD , is equal ( 13. 1. ) to two right angles ; therefore all the interior , together with all the exterior angles of the figure , are equal to twice as many right angles as there are sides of the ...
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Vanlige uttrykk og setninger
ABC is equal ABCD adjacent angles altitude angle ABC angle ACB angle BAC base BC bisected centre chord circle ABC circumference cosine cylinder demonstrated described diameter divided draw equal and similar equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given rectilineal given straight line greater Hence hypotenuse inscribed join less Let ABC Let the straight magnitudes meet multiple opposite angle parallel parallelogram parallelopiped perpendicular polygon prism PROB PROP proportional proposition quadrilateral radius ratio rectangle contained rectilineal figure remaining angle right angled triangle SCHOLIUM segment semicircle shewn side BC sine solid angle solid parallelopiped spherical angle spherical triangle square straight line BC THEOR touches the circle triangle ABC triangle DEF wherefore