Elements of GeometryGinn and Heath, 1881 - 250 σελίδες |
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Σελίδα 10
... angles and the given angle . Thus A CD is the supplement of the angle D C B ; also D C B is the supplement of the angle AC D. 32. DEF . Vertical Angles are angles which have the same vertex , and their sides extending in opposite ...
... angles and the given angle . Thus A CD is the supplement of the angle D C B ; also D C B is the supplement of the angle AC D. 32. DEF . Vertical Angles are angles which have the same vertex , and their sides extending in opposite ...
Σελίδα 25
... side of the straight line joining their origins . Parallel lines lie in opposite directions , when they are on opposite sides of the straight line joining their origins . 64. Two parallel lines cannot meet . $ 21 65. Two lines in the ...
... side of the straight line joining their origins . Parallel lines lie in opposite directions , when they are on opposite sides of the straight line joining their origins . 64. Two parallel lines cannot meet . $ 21 65. Two lines in the ...
Σελίδα 35
George Albert Wentworth. PROPOSITION XIX . THEOREM . 77. Two angles whose sides are parallel , two and two , and lie in the same direction , or opposite directions , from their vertices , are equal . A D F Α ' 77 H B4 C BI E F Fig . 1 ...
George Albert Wentworth. PROPOSITION XIX . THEOREM . 77. Two angles whose sides are parallel , two and two , and lie in the same direction , or opposite directions , from their vertices , are equal . A D F Α ' 77 H B4 C BI E F Fig . 1 ...
Σελίδα 36
... sides parallel and lying in the same direction from their vertices , while the other two sides are parallel and lie in opposite directions , then the two angles are supplements of each other . Α C M H E Let A B C and D E F be two angles ...
... sides parallel and lying in the same direction from their vertices , while the other two sides are parallel and lie in opposite directions , then the two angles are supplements of each other . Α C M H E Let A B C and D E F be two angles ...
Σελίδα 37
... angles , and the equal sides are called Homologous sides . kis . ( Normesh 82. In equal triangles the equal sides are opposite the equal angles . SCALENE . ISOSCELES . EQUILATERAL . 83. DEF . A Scalene triangle is one of which no two sides ...
... angles , and the equal sides are called Homologous sides . kis . ( Normesh 82. In equal triangles the equal sides are opposite the equal angles . SCALENE . ISOSCELES . EQUILATERAL . 83. DEF . A Scalene triangle is one of which no two sides ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
A B C AABC AACB ABCD acute adjacent angles alt.-int altitude apothem arc A B BC² bisect centre chord A B circumference circumscribed coincide COROLLARY describe an arc diagonals diameter divided Draw equal arcs equal distances equal respectively equiangular polygon equilateral equilateral polygon equivalent exterior angles figure given line given point given polygon greater homologous sides hypotenuse Iden isosceles triangle Let A B limit line A B measured by arc middle point number of sides parallelogram perimeter perpendicular plane PROBLEM prove Q. E. D. PROPOSITION quadrilateral radii radius equal ratio rect rectangles regular inscribed regular polygon required to construct rhombus right angles right triangle SCHOLIUM segment sides of equal sides of similar similar polygons subtend tangent THEOREM third side triangle ABC variable vertex vertices