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 Teokset Teokset 41 - 50 / 108 haulle The perpendiculars from the vertices of a triangle to the opposite sides meet in....
The perpendiculars from the vertices of a triangle to the opposite sides meet in a point. Let the Js be AH, BP, and CK. Through A, B, C suppose B'C', A'C', A'B', drawn II to BC, AC, AB, respectively. Then AH is _L to B'C'. (Why ?) Now ABCB' and A CBC'...
Vector Analysis: A Text-book for the Use of Students of Mathematics ... - Sivu 106
tekijä(t) Edwin Bidwell Wilson, Josiah Willard Gibbs - 1901 - 436 sivua
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## Plane and Solid Analytic Geometry

Frederick Harold Bailey - 1897 - 371 sivua
...the axis of x. Then the vertices are (0, 0), (x,, 0), and (x 2 , y 2 )-) 96. Prove analytically that the perpendiculars from the vertices of a triangle to the opposite sides meet in a point. (Take axes as in Ex. 95.) 97. Prove analytically that the perpendiculars drawn from any two vertices...

## Elements of Geometry

Andrew Wheeler Phillips, Irving Fisher - 1897 - 354 sivua
...each other at right angles, and also bisect the angles of the rhombus. ' BOOK I 14:4:. Exercise.—The perpendiculars from the vertices of a triangle to the opposite sides meet in a point. Hint.—Draw through each vertex a parallel to the opposite side. Prove AE, BH, and CD are perpendicular...

## Numerical Problems in Plane Geometry with Metric and Logarithmic Tables

Joe Garner Estill - 1897 - 144 sivua
...triangles are to each other as the squares of their homologous sides. Bowdoin College, June, 1895. 1. The perpendiculars from the vertices of a triangle to the opposite sides meet hi a common point. 2. Upon a given straight line describe an arc of a circle which shall contain a...

## Elements of Geometry: Including Plane, Solid, and Spherical Geometry

George Washington Hull - 1897 - 398 sivua
...opposite angles of a quadrilateral be supplementary, the quadrilateral can be inscribed in a circle. 576. The perpendiculars from the vertices of a triangle to the opposite sides are the bisectors of the angles of the triangle formed by joining the feet of the perpendiculars. 577....

## Plane and Solid Geometry

James Howard Gore - 1898 - 210 sivua
...is formed at each vertex of a triangle, their sum will be equal to four right angles. 3. Show that the perpendiculars from the vertices of a triangle to the opposite sides meet in a point. 4. Show that every point unequally distant from the sides of an angle lies outside of the bisector...

## Entrance Examinations in Mathematics, 1884 to 1898 [with Supplements to 1900]

Yale University - 1898
...radius of the sphere of which it forms a part being ю feet. JUNE 1886. PLANE. 1. Prove that the three perpendiculars from the vertices of a triangle to the opposite sides meet in a point. 2. Two parallel chords or secants intercept equal arcs on a circumference. 3. The base of a triangle...

## Yale University Entrance Examinations in Mathematics: 1884 to 1898

1898 - 208 sivua
...radius of the sphere of which it forms a part being 10 feet. JUNE 1886. PLANE. 1. Prove that the three perpendiculars from the vertices of a triangle to the opposite sides meet in a point. 2. Two parallel chords or secants intercept equal arcs on a circumference. 3. The base of a triangle...

## The Essentials of Geometry (plane)

Webster Wells - 1898 - 242 sivua
...parallelogram form a rectangle. (By Ex. 46, each Z of EFGH is a rt. /..) B. PROP. LI. THEOREM. 138. The perpendiculars from the vertices of a triangle to the opposite sides intersect at a common point. Given AD, BE, and CFfhe Ja from the vertices of A ABC to the opposite...

## Plane Geometry

George Albert Wentworth - 1899 - 256 sivua
...B. Hence, 0 is equidistant from B and C, and B therefore is in the _L bisector FF'. (Why ?) Ex. 26. The perpendiculars from the vertices of a triangle to the opposite sides meet in a point. Let the Js be AH, BP, and CK. Through A, B, C suppose B'C', A'fT, A'R, drawn II to BC, AC, AB, respectively....

## Plane and Solid Geometry

George Albert Wentworth - 1899 - 473 sivua
...Hence, 0 is equidistant from B and C, and B t. therefore is in the _L bisector FF'. (Why ?) Ex. 26. The perpendiculars from the vertices of a triangle to the opposite sides meet in a point. Let the Js be AH, BP, and CK. Through A, B, C suppose B'C', A'C', A'B', drawn II to BC, AC, AB, respectively....