Chauvenet's Treatise on Elementary GeometryJ. B. Lippincott Company, 1887 - 322 páginas |
Dentro del libro
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Página 16
... Suggestion . Suppose a line OD to revolve about O , as in the proof just given . B A * An Arabic numeral alone refers to an article in the same Book ; but in referring to articles in another Book , the number of the Book is also given ...
... Suggestion . Suppose a line OD to revolve about O , as in the proof just given . B A * An Arabic numeral alone refers to an article in the same Book ; but in referring to articles in another Book , the number of the Book is also given ...
Página 20
... Suggestion . Prove EOH FOH PROPOSITION VI . - THEOREM . G 20. Two triangles are equal when two sides and the included angle of the one are respectively equal to two sides and the included angle of the other . In the triangles ABC , DEF ...
... Suggestion . Prove EOH FOH PROPOSITION VI . - THEOREM . G 20. Two triangles are equal when two sides and the included angle of the one are respectively equal to two sides and the included angle of the other . In the triangles ABC , DEF ...
Página 29
... Suggestion . Superpose the second triangle upon the first , making the given equal angles coincide . PROPOSITION XVII . - THEOREM . 33. The perpendicular is the shortest line that can be drawn from a point to a straight line . Let PC be ...
... Suggestion . Superpose the second triangle upon the first , making the given equal angles coincide . PROPOSITION XVII . - THEOREM . 33. The perpendicular is the shortest line that can be drawn from a point to a straight line . Let PC be ...
Página 35
... Suggestion . Suppose them to meet ; v . Postulate II . 2. Theorem . - Lines parallel to the same line are parallel to each other . 43. Definitions . When two straight lines AB , CD , are cut by a third EF , the eight angles formed at ...
... Suggestion . Suppose them to meet ; v . Postulate II . 2. Theorem . - Lines parallel to the same line are parallel to each other . 43. Definitions . When two straight lines AB , CD , are cut by a third EF , the eight angles formed at ...
Página 36
... Suggestion . Show that in that case a pair of alternate- interior angles are equal . 46. COROLLARY II . When two straight lines are cut by a third , if the sum of two interior angles on the same side of the secant line is equal to two ...
... Suggestion . Show that in that case a pair of alternate- interior angles are equal . 46. COROLLARY II . When two straight lines are cut by a third , if the sum of two interior angles on the same side of the secant line is equal to two ...
Otras ediciones - Ver todas
Chauvenet's Treatise on Elementary Geometry William Chauvenet,William Elwood Byerly Vista completa - 1887 |
Términos y frases comunes
ABCD adjacent angles altitude angles are equal apothem bisects centre chord coincide common cone construct convex Corollary cylinder Definition diagonal diameter dicular diedral angle distance divided draw equal circles equally distant equilateral equivalent Exercise Find the locus frustum given circle given line given point given straight line greater Hence hypotenuse included angle inscribed angle intercepted arcs isosceles triangle lateral area lateral edges mean proportional middle point number of sides parallel lines parallelogram parallelopiped pass a plane pendicular perimeter perpen perpendicular plane angle plane MN plane passed polyedral angle Proposition VI Proposition VII quadrilateral radii radius ratio rectangle regular inscribed regular polygon respectively equal right angles right triangle Scholium secant secant line segment similar slant height sphere spherical polygon spherical triangle square surface tangent tetraedron Theorem triangle ABC triangles are equal triangular prism triedral upper base vertex volume
Pasajes populares
Página 200 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
Página 133 - The area of a rectangle is equal to the product of its base and altitude.
Página 137 - Two triangles having an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles.
Página 117 - The square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other two sides.
Página 214 - The acute angle which a straight line makes with its own projection upon a plane is the least angle which it makes with any line of that plane.
Página 113 - If two polygons are composed of the same number of triangles, similar each to each and similarly placed, the polygons are similar.
Página 38 - The sum of the three angles of any triangle is equal to two right angles.
Página 184 - If two triangles have two sides of the one respectively equal to two sides of the other, and the included angles unequal, the triangle which has the greater included angle has the greater third side.
Página 128 - Find the locus of a point the sum of whose distances from two given straight lines is equal to a given constant, k.
Página 52 - The straight line joining the middle points of two sides of a triangle is parallel to the third side, and equal to half of it.