Elements of GeometryGinn and Heath, 1881 - 250 σελίδες |
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Αποτελέσματα 1 - 5 από τα 18.
Σελίδα 21
... point in a perpendicular , cut off equal distances from the foot of the perpendicular . C A A B E F K Let C F be the perpendicular , and C E and C K be two equal oblique lines drawn from the point ... middle PERPENDICULAR AND OBLIQUE LINES .
... point in a perpendicular , cut off equal distances from the foot of the perpendicular . C A A B E F K Let C F be the perpendicular , and C E and C K be two equal oblique lines drawn from the point ... middle PERPENDICULAR AND OBLIQUE LINES .
Σελίδα 22
... middle of the straight line A B , O any point in P R , and C any point without PR . I. Draw OA and O B. Put I We are to prove О А = O B. Since PA PB , = ОА OA = 0B , § 53 ( two oblique lines drawn from the same point in a 1 , cutting ...
... middle of the straight line A B , O any point in P R , and C any point without PR . I. Draw OA and O B. Put I We are to prove О А = O B. Since PA PB , = ОА OA = 0B , § 53 ( two oblique lines drawn from the same point in a 1 , cutting ...
Σελίδα 23
... point is a line , straight or curved , con- taining all the points which possess a common property . Thus , the perpendicular erected at the middle of a straight line is the locus of all points equally distant from the extremi- ties of ...
... point is a line , straight or curved , con- taining all the points which possess a common property . Thus , the perpendicular erected at the middle of a straight line is the locus of all points equally distant from the extremi- ties of ...
Σελίδα 27
... middle point of B C , draw A D1 to G H. Then AD is likewise to EF , ( a straight line to one of two lls is to the other ) , that is , CD and B A are both 1 to A D. $ 67 Apply figure COD to figure BOA so that OD shall fall on O A. Then ...
... middle point of B C , draw A D1 to G H. Then AD is likewise to EF , ( a straight line to one of two lls is to the other ) , that is , CD and B A are both 1 to A D. $ 67 Apply figure COD to figure BOA so that OD shall fall on O A. Then ...
Σελίδα 34
... points in AB , as E and H , let EF and HK be drawn perpendicular to A B. We are to prove EF = HK . Now EF and HK are 1 to CD , ( a line to one of two lls is to the other also ) . Let M be the middle point of E H. Draw MPL to A B. t $ 67 ...
... points in AB , as E and H , let EF and HK be drawn perpendicular to A B. We are to prove EF = HK . Now EF and HK are 1 to CD , ( a line to one of two lls is to the other also ) . Let M be the middle point of E H. Draw MPL to A B. t $ 67 ...
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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