بحث صور خرائط Google Play YouTube الأخبار Gmail Drive المزيد »
تسجيل الدخول
الكتب الكتب
" The line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of the third side. "
Calendar, for the Year ... - الصفحة lxix
1897
عرض كامل - لمحة عن هذا الكتاب

Elements of Plane Geometry According to Euclid

Andrew Bell - 1837 - عدد الصفحات: 290
...of its sides. 9. To bisect a parallelogram by a line drawn from a point in one of its sides. 10. A line joining the middle points of two sides of a triangle, is parallel to the base, and equal to the half of it. 11. The quadrilateral formed by joining the successiYe middle points...

A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on ...

George Salmon - 1852 - عدد الصفحات: 338
...triangle meet on the internal bisector of the third angle : interpreted the other way, express that the line joining the middle points of two sides of a triangle is parallel to the third side. 5. We give now some examples of the use of these equations of the first degree. Ex. 1. Tiie bisectors...

The synoptical Euclid; being the first four books of Euclid's Elements of ...

Euclides - 1853 - عدد الصفحات: 146
...to four right angles. 10. To describe a square equal to the difference of two given squares. II. A line joining the middle points of two sides of a triangle is parallel to the "base, and equal to half of it. 12. To bisect a given parallelogram by a line drawn from a point in...

The American Journal of Education and College Review, المجلد 2

1856 - عدد الصفحات: 732
...is an easy deduction, from any one of this series, that a straight line cutting off' equimultiples of two sides of a triangle is parallel to the third side ; and, conversely, a parallel to one side cuts off equimultiples of the other two sides. We need now...

Euclid's Elements of plane geometry [book 1-6] explicitly enunciated, by J ...

Euclides - 1860 - عدد الصفحات: 142
...equidistant from P, and the line BC joining them is parallel to AE. EXERCISE XLIX. — THEOREM. The line joining the middle points of two sides of a triangle is parallel to the base, and equal to the half of it. Let ABC be a triangle, the line DE, that joins the middle points...

Mechanics required for the Additional Subjects for Honours at the Previous ...

James McDowell - 1867 - عدد الصفحات: 120
...through the same point and cut each other in a point of trisection. (EXERCISES, p. 3, No. 5.) Also 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. (1) Let AB CD be a rhombus. In the triangles ABC, ADC, the sides AB, AC are...

An Elementary Course of Plane Geometry

Richard Wormell - 1870 - عدد الصفحات: 304
...DQ=D R. Consequently PR, which is equal to P D+DR, is equal to P D+D Q. Therefore EC=P D+D Q. 2. The line joining the middle points of two sides of a triangle is equal to half the third side, and is parallel to it. Let ABC be the triangle, D and E the middle points...

A School Euclid. Being Books I.&II. of Euclid's Elements. With Notes ...

Euclides - 1874 - عدد الصفحات: 120
...(AB}. [Bisect BC in 0. Join PO and draw AQ- parallel to it. Then PQ shall bisect the triangle.] 53. 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. 54. The straight lines joining the middle points of the four sides of any...

Elements of Euclid Adapted to Modern Methods in Geometry

Euclid, James Bryce, David Munn (F.R.S.E.) - 1874 - عدد الصفحات: 236
...2, 3, 4, etc. (I. App., schol. 2), the corresponding areas are 1, 4, 9, 16, etc. Conversely. — The line joining the middle points of two sides of a triangle is parallel to the third side, and equal to one-half of it. In the triangle ABC, let AB, AC be bisected in D and E. The line joining...

Euclid simplified. Compiled from the most important French works, approved ...

John Reynell Morell - 1875 - عدد الصفحات: 220
...corresponding height are given. EXERCISES ON BOOK III. 92. The straight line which joins the centres of two sides of a triangle is parallel to the third side, and equal to half that side. 93. The straight lines which join the centres of the consecutive sides...




  1. مكتبتي
  2. مساعدة
  3. بحث متقدم في الكتب
  4. التنزيل بتنسيق EPUB
  5. التنزيل بتنسيق PDF