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Of three-sided figures, an equilateral triangle is that which has three equal sides.
Mensuration of lines, areas, surfaces, and volumes - Page xiv
by Robert Rawson - 1856

## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1868 - 434 pages
...figures, or triangles, by three straight lines. , XXII. Quadrilateral, by four straight lines. XXIII. Multilateral figures, or polygons, by more than four...three-sided figures, an equilateral triangle is that which three equal sides. XXV. An isosceles triangle is that which has two sides equal. XXVL A scalene triangle...

## The Elements of Euclid, containing the first six books, with a selection of ...

Euclides - 1874 - 342 pages
...by four straight lines. 23. Multilateral figures, or polygons, by more than four straight lines. 24 Of three-sided figures, an equilateral triangle is that which has three equal sides. 25. An isosceles triangle is that which has two sides equal. 26. A scalene triangle is that which has...

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

Euclides - 1874 - 120 pages
...by four straight lines. 23. Multilateral figures, or polygons, by more than four straight lines. 24. Of three-sided figures an equilateral triangle is that which has three equal sides. 25. An isosceles triangle is that which has only two sides equal. 26. A scalene triangle is that which...

## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - Geometry, Plane - 1876 - 446 pages
...Trilateral figures, or triangles, by three straight lines. XXIL Quadrilateral, by four straight lines. xxm. Multilateral figures, or polygons, by more than four...Of three-sided figures, an equilateral triangle is (hat which ha* three equal sidet. XXV. An isosceles triangle is that which has two sides equal. !.''...

## Elements of geometry, based on Euclid, books i-iii

Edward Atkins - 1876 - 130 pages
...by four straight lines. 23. Multilateral figures, or polygons, by more than four straight lines. 24. Of three-sided figures an equilateral triangle is that which has three equal sides. 25. An isosceles triangle is that which has only / \ two sides equal. / . \ 26. A scalene triangle...

## Elements of geometry, based on Euclid, book i

Edward Atkins - 1877 - 72 pages
...four straight lines. 23. Multilateral figures, or polygons, by more than four straight lines. A 24. Of three-sided figures an equilateral triangle / \ is that which has three equal sides. / \ 25. An isosceles triangle is that which has only two sides equal. 26. A scalene triangle is that...

## Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879 - 426 pages
...by four straight lines. 23. Multilateral figures, or polygons, by more than four straight lines. 24. Of three-sided figures, an equilateral triangle is that which has three equal sides. 25. An isoscles triangle is that which has two sides equal. 26. A scalene triangle is that which has...

## Euclid, books i. & ii., with notes, examples, and explanations, by a late ...

Euclides - 1879 - 146 pages
...lines. [A polygon is called regular when all its sides are equal and all its angles are also equal.] 24. Of three.sided figures : An equilateral triangle is that which has three equal sides. 25. An isosceles triangle is that which has two sides equal. 26. A scalene triangle is that which has...

## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 426 pages
...four straight lines : 23. Multilateral figures, or polygons, by more than four straight lines. 24. Of three-sided figures, An equilateral triangle is that which has three equal sides : 25. An isosceles triangle is that which has two sides equal : 26. A scalene triangle is that which...

## The text of Euclid's geometry, book 1, uniformly and systematically arranged ...

Euclides - 1884 - 214 pages
...line. Postulate 1. A straight line may be drawn from any one point to any other point. Definition 24. Of three-sided figures an equilateral triangle is that which has three equal sides. Proposition VIII. If two triangles have two sides of the one equal to two sides of the other, each...