Intermediate Geometry: Being Sections V and VI of "geometry, Theoretical and Practical".W.B. Clive, University Tutorial Press Ld., 1908 - Geometry |
From inside the book
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Page 423
... common tangent to two circles cuts the join of the centres externally or internally in the ratio of the radii . 16. Two circles intersect in A and B. Any chord CBD cuts the circles in C and D. Prove that the ratio AC : AD is constant ...
... common tangent to two circles cuts the join of the centres externally or internally in the ratio of the radii . 16. Two circles intersect in A and B. Any chord CBD cuts the circles in C and D. Prove that the ratio AC : AD is constant ...
Page 424
... common extremity at B , and those in Corollary ( iii ) have a common extremity at C. ] NOTF . These three corollaries are equivalent to the theorems 424 SIMILAR FIGURES .
... common extremity at B , and those in Corollary ( iii ) have a common extremity at C. ] NOTF . These three corollaries are equivalent to the theorems 424 SIMILAR FIGURES .
Page 432
... common tangent is a mean proportional to their diameters . 20. If one of the sides of a right - angled triangle is double the other , prove that the perpendicular from the right angle to the hypotenuse divides it in the ratio 4 : 1 . 21 ...
... common tangent is a mean proportional to their diameters . 20. If one of the sides of a right - angled triangle is double the other , prove that the perpendicular from the right angle to the hypotenuse divides it in the ratio 4 : 1 . 21 ...
Page 469
... common point A , then Bb , Cc , and Dd will be concurrent . 5. Find a fourth harmonic point to three given points . 6. Draw a fourth harmonic ray to three given rays . 7. A diameter of a circle is divided harmonically by any tangent and ...
... common point A , then Bb , Cc , and Dd will be concurrent . 5. Find a fourth harmonic point to three given points . 6. Draw a fourth harmonic ray to three given rays . 7. A diameter of a circle is divided harmonically by any tangent and ...
Page 470
... common tangents pass through the centres of similitude . For the radii to the points of contact of the common tangents are parallel . COROLLARY 2. - Conversely , the line joining a centre of similitude to the extremity of a radius of ...
... common tangents pass through the centres of similitude . For the radii to the points of contact of the common tangents are parallel . COROLLARY 2. - Conversely , the line joining a centre of similitude to the extremity of a radius of ...
Other editions - View all
Intermediate Geometry: Being Sections V and VI of Geometry, Theoretical and ... Walter Percy Workman No preview available - 2023 |
Intermediate Geometry: Being Sections V and VI of Geometry, Theoretical and ... Walter Percy Workman No preview available - 2023 |
Intermediate Geometry: Being Sections V and VI of Geometry, Theoretical and ... Walter Percy Workman No preview available - 2019 |
Common terms and phrases
ABCD B.Sc base bisects centre of similitude Ceva's Theorem CHAPTER chord circles touch circumcircle collinear concurrent concyclic points Cons Cons.-Draw cyclic quadrilateral diagonals diameter dihedral angle divided equiangular EXERCISES externally figure Find the locus Geometry given circles given line given point given ratio given straight line harmonic range Hence hypotenuse intersecting planes irrational numbers LAOB LDPE lies in plane line drawn line joining line perpendicular mean proportional meet nine-point circle opposite edges orthocentre pair parallel planes parallelogram parallelopiped perpendicular Picture Plane plane X plane XX polygon Proof quadrilateral radical axis radii radius rational numbers rectangle contained remaining Theorems Required to prove respectively right angles segments similar triangles Similarly solid angle square tangents tetrahedron THEOREM.-If three lines triangle ABC Tutorial vertex vertical angle
Popular passages
Page 570 - If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Page 584 - If from the vertical angle of a triangle a straight line be drawn perpendicular to the base, the rectangle contained by the sides of the triangle is equal to the rectangle contained by the perpendicular and the diameter of the circle described about the triangle.
Page 575 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Page 424 - IN a right-angled triangle, if a perpendicular be drawn from the right angle to the base, the triangles on each side of it are similar to the whole triangle, and to one another.
Page 10 - The historical part is concise and clear, but the criticism is even more valuable, and a number of illustrative extracts contribute a most useful feature to the volume.
Page 571 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Page 16 - The object of the UNIVERSITY TUTORIAL SERIES is to provide candidates for examinations and learners generally with text-books which shall convey in the simplest form sound instruction in accordance with the latest results of scholarship and scientific research. Important points are fully and clearly treated, and care has been taken not to introduce details which are likely to perplex the beginner. The Publisher will be happy to entertain applications from Schoolmasters for specimen copies of any...
Page 583 - If four straight lines be proportionals, the rectangle contained by the extremes is equal to the rectangle contained by the means...
Page 574 - If a parallelogram and a triangle be on the same base and between the same parallels, the parallelogram shall be double of the triangle.
Page 574 - Equal triangles, on equal bases, in the same straight line, and on the same side of it, are between the same parallels. Let...