 | Euclides - 1852 - 152 pages
...opposite sides or opposite angles of a quadrilateral figure be equal, the figure will be a parallelogram. The two triangles, formed by drawing straight lines...opposite sides, are together half of the parallelogram. If two sides of a trapezium be parallel, its area is equal to half that of a parallelogram whose base... | |
 | Royal college of surgeons of England - 1860 - 332 pages
...described upon the other two sides of it, the angle contained by these two sides is a right angle. 9. The two triangles, formed by drawing straight lines...the extremities of two opposite sides, are together equal to half the parallelogram. PBELIMINAKY GENERAL EXAMINATION. Midsummer, 1868. WEDNESDAY, June... | |
 | Horatio Nelson Robinson - Geometry - 1860 - 470 pages
...14. The three straight lines which bisect the three angles of a triangle, meet in the same point. 15. The two triangles, formed by drawing straight lines from any point within a parallelogram to the extremi ties of two opposite sides, are, together, one half the parallelogram. 16. The figure formed... | |
 | Horatio Nelson Robinson - Conic sections - 1865 - 474 pages
...14. The three straight lines which bisect the three angles of a triangle, meet in the same point. 15. The two triangles, formed by drawing straight lines...extremities of two opposite sides, are, together, one half the parallelogram. 16. The figure formed by joining the points of bisection of the sides of... | |
 | Horatio Nelson Robinson - Geometry - 1868 - 276 pages
...14. The three straight lines which bisect the three angles of a triangle, meet in the same point. 15. The two triangles, formed by drawing straight lines...extremities of two opposite sides, are, together, one half the parallelogram. 16. The figure formed by joining the points of bisection of the sides of... | |
 | Aristophanes - 1868 - 216 pages
...does not lie, the difference of the triangles thus formed is equal to half the parallelogram. Ex. 2. The two triangles, formed by drawing straight lines...point within a parallelogram to the extremities of ita opposite sides, are together half of the parallelogram. [J. HAMBLIN SMITH'S GEOMETRY— See Page... | |
 | Aristophanes - 1870 - 264 pages
...of the triangles thus formed is equal to half the parallelogram. Ex. 2. The two triangles, fonr.ad by drawing straight lines from any point within a parallelogram to the extremities of its opposite sides, are together half of the parallelogram. [J. HAMBLIN SMITH'S GEOMETRY— See Page... | |
 | Euclides - 1871 - 136 pages
...does not lie, the difference of the triangles thus formed is equal to half the parallelogram. Ex. 2. The two triangles, formed by drawing straight lines...point within a parallelogram to the extremities of its opposite sides, are together half of the parallelogram. 5—2 To describe a parallelogram that... | |
 | Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...does not lie, the difference of the triangles thus formed is equal to half the parallelogram. Ex 2. The two triangles, formed by drawing straight lines...point within a parallelogram to the extremities of its opposite sides, are together half of the parallelogram. PROPOSITION XLII. PROBLEM. To describe... | |
 | Jacques Claude Demogeot - French literature - 1874 - 408 pages
...does not lie, the difference of the triangles thus formed is equal to half the parallelogram. Ex. 2. The two triangles, formed by drawing straight lines...point within a parallelogram to the extremities of its opposite sides, are together half of the parallelogram. [Specimen Page, No. 9.] CARBONIC ANHYDRIDE.... | |
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If from a point, without a parallelogram, there be drawn two straight lines to the extremities of the two opposite sides, between which, when produced, the point does not lie, the difference of the triangles thus formed is equal to half the parallelogram.... 
