The geometry, by T. S. Davies. Conic sections, by Stephen FenwickJ. Weale, 1853 |
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Seite 2
... sides . 25. An isosceles triangle is that which has two sides equal . AAA C E F H 26. A scalene triangle is that which has three unequal sides . 27. A right - angled triangle is that which has a right angle . 28. An obtuse - angled ...
... sides . 25. An isosceles triangle is that which has two sides equal . AAA C E F H 26. A scalene triangle is that which has three unequal sides . 27. A right - angled triangle is that which has a right angle . 28. An obtuse - angled ...
Seite 3
... sides equal . 32. A rhombus is that which has all its sides equal , but its angles are not right angles . ᄆᄆ 33. A rhomboid is that which has its opposite sides equal to one another , but all its sides are not equal , nor its angles ...
... sides equal . 32. A rhombus is that which has all its sides equal , but its angles are not right angles . ᄆᄆ 33. A rhomboid is that which has its opposite sides equal to one another , but all its sides are not equal , nor its angles ...
Seite 5
... sides of the one equal to two sides of the other , each to each ; and have likewise the angles contained by those sides equal to one another ; they shall likewise have their bases , or third sides , equal ; and the two triangles shall ...
... sides of the one equal to two sides of the other , each to each ; and have likewise the angles contained by those sides equal to one another ; they shall likewise have their bases , or third sides , equal ; and the two triangles shall ...
Seite 6
... sides of the one equal to two sides of the other , each to each , and have likewise the angles contained by those sides equal to one another , their bases shall likewise be equal , and the triangles be equal , and their other angles to ...
... sides of the one equal to two sides of the other , each to each , and have likewise the angles contained by those sides equal to one another , their bases shall likewise be equal , and the triangles be equal , and their other angles to ...
Seite 7
... side of the base . Therefore the angles at the base , etc. Q. E. D. COROLLARY . Hence every equilateral triangle is also equiangular . PROPOSITION VI . THEOR . If two angles of a triangle be equal to one another , the sides also which ...
... side of the base . Therefore the angles at the base , etc. Q. E. D. COROLLARY . Hence every equilateral triangle is also equiangular . PROPOSITION VI . THEOR . If two angles of a triangle be equal to one another , the sides also which ...
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ABC is equal ABCD adjacent angles angle ABC angle BAC axis bisected centre circle ABC circumference coincide cone construction coordinate planes described Descriptive Geometry diameter dicular dihedral angles draw edges ellipse equal angles equiangular equimultiples given line given point given straight line greater hence horizontal hyperbola inclination intersection join less Let ABC Let the plane line BC lines drawn magnitudes meet multiple orthograph parabola parallel planes parallelogram parallelopiped perpen perpendicular perpendicular to MN plane MN plane of projection plane parallel plane PQ prisms profile angles profile plane projecting plane Prop Q. E. D. PROPOSITION ratio rectangle rectangle contained rectilineal figure remaining angle respectively right angles SCHOLIUM segment sides six right sphere spherical angle tangent THEOR trace triangle ABC trihedral vertex Whence Wherefore