Books Books
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 46 INTERCEPTS BY PARALLEL LINES.
Euclid - Page 99
by Euclid, Rupert Deakin - 1903 - 164 pages

## A Text-book of Geometry

George Albert Wentworth - Geometry - 1888 - 264 pages
...they intercept equal parts on the transversal AC; that is, the line DE bisects AC. 189. COR. 2. The line which joins the middle points of two sides of a triangle is parallel to the third side, and is equal to half the third side. For, a line drawn through D, the middle point of AB, II to BC, passes...

## Elementary Statics

John Bascombe Lock - Forces and couples - 1888 - 278 pages
...one of the sides of another piece of cardboard. Shew that their cGs are superposed. The line joining the middle points of two sides of a triangle is parallel to the third side of the triangle and is bisected by the line joining the middle point of the third side to the opposite...

## A Text-book of Geometry

George Albert Wentworth - Geometry - 1888 - 272 pages
...they intercept equal parts on the transversal AC ; that is, the line DE bisects AC. 189. COR. 2. The line which joins the middle points of two sides of a triangle is para/lei to the third side, and is equal to half the third side. For, a line drawn through D, the middle...

## Exercise Manuals, Issue 3

George Albert Wentworth - 1889 - 276 pages
...the centre of a parallelogram divides its perimeter into two equal parts. 35. The line which bisects two sides of a triangle is parallel to the third side, and equal to half the third side. ABAE a Fig. 3. Fig. 4. Produce (Fig. 3) DE, making EF= DE, and join BF. & DCE and BEFare...

## Wentworth & Hills's Exercise Manuals: Geometry, Issue 3

George Albert Wentworth - 1889 - 264 pages
...the centre of a parallelogram divides its perimeter into two equal parts. 35. The line which bisects two sides of a triangle is parallel to the third side, and equal to half the third side. Fig. 3. E Fig. 4. Produce (Fig. 3) DE, making EF= DE, and join BF. &, DCE and BEF are...

## Elementary Synthetic Geometry of the Point, Line and Circle in the Plane

Nathan Fellowes Dupuis - Geometry - 1889 - 370 pages
...one side of a triangle, parallel to a second side, bisects the third side. And, 2, the line through the middle points of two sides of a triangle is parallel to the third side. 85°. Theorem. — The three medians of a triangle pass through a common point. CF and AD are medians...

## The Elements of Plane and Solid Geometry ...

Edward Albert Bowser - Geometry - 1890 - 418 pages
...(153). But this latter intercept = 0. .-. BC-DE = DE. .-. DE = £BC. QED 155. COR. 1. The line joining the middle points of two sides of a triangle is parallel to the third side, and equal to half of it. 156. COR. 2. Let ABCD be a trape- D/ - <.C zoid, AG = GD, and Gil || to AB. _/ _ \ Then BH = HC, for,...

## The Elements of Plane and Solid Geometry: With Numerous Exercises

Edward Albert Bowser - Geometry - 1890 - 420 pages
...intercept = 0. .-. BC-DE = DE. .-. DE=iBC. QED 155. COR. 1. The line joining the middle points of tico sides of a triangle is parallel to the third side, and equal to half of it. 156. COR. 2. Let ABCD be a trape- D/ - vC zoid, AG = GD, and GH || to AB. _/ _ \ Then BH = HC, for,...