| John Radford Young - Measurement - 1850 - 294 pages
...any inclosed space. 1 0. An EQUILATERAL TRIANGLE is one of which all the three sides are equal. 1 1 . An ISOSCELES TRIANGLE is one which has two of its sides equal. EQUILATERAL. ISOSCELES. Hence, whenever a triangle is presented to us under the condition that two... | |
| Charles Davies - Geometry - 1854 - 436 pages
...sides and angles. 1. An equilateral triangle is one which has its three sides equal. 16 GEOMETRY. 2. An isosceles triangle is one which has two of its sides equal. , 3. A scalene triangle is one which has its three sides unequal. 4. An acute•angled triangle is... | |
| Benjamin Greenleaf - Arithmetic - 1857 - 452 pages
...line AB, drawn from the angle A perpendicular to the base C 1), is the altitude of the triangle CAD. An isosceles triangle is one which has two of its sides equal ; as EF G. A scalene triangle is one which has its three sides unequal ; as II 1 .1. A right-angled... | |
| Adrien Marie Legendre, Charles Davies - Geometry - 1857 - 442 pages
...both to their sides and angles. 1. An equilateral triangle is one which has its three sides equal. 2. An isosceles triangle is one which has two of its sides equal. 3. A scalene triangle is one which has its three sides unequal. 4. An acute-angled triangle is one... | |
| Benjamin Greenleaf - Arithmetic - 1858 - 458 pages
...line AB, drawn from the angle A perpendicular to the base CD, is the altitude of the triangle CAD. An isosceles triangle is one which has two of its sides equal ; as EF G. A scalene triangle is one which has its three sides unequal ; as II IJ. A right-angled triangle... | |
| Benjamin Greenleaf - Arithmetic - 1858 - 472 pages
...line AB, drawn from the angle A perpendicular to the base CD, is the altitude of the triangle CAD. An isosceles triangle is one which has two of its sides equal ; as EF G. A scalene triangle is one which has its three sides unequal ; as HIJ. A rigid-angled triangle... | |
| Benjamin Greenleaf - Geometry - 1862 - 518 pages
...and so on. 22. An EQUILATERAL TRIANGLE is one which has its three sides equal ; as the triangle ABC. An ISOSCELES TRIANGLE is one which has two of its sides equal ; as the triangle DE F. . • A SCALENE TRIANGLE is one which has no two of its sides equal ; as the... | |
| Benjamin Greenleaf - Geometry - 1861 - 638 pages
...so on. Ai 22. An EQUILATERAL TRIANGOLE is one which has its three sides equal ; as the triangle ABC. An ISOSCELES TRIANGLE is one which has two of its sides equal ; as the triangle DBF. A SCALENE TRIANGLE is one which has no two of its sides equal ; as the triangle... | |
| Adrien Marie Legendre - Geometry - 1863 - 464 pages
...with reference to their sides, there ar*> two classes : scalene and isosceles. 1st. A SCALENE TRIANGLE is one which has no two of its sides equal. 2d. An...angle. The side opposite the right angle, is called the hypotlw nuse. BOOK I. If one angle of an oblique-angled triangle is obtuse, the triangle is said to... | |
| Benjamin Greenleaf - Geometry - 1863 - 504 pages
...and so on. 22. An EQUILATERAL TRIANGLE is one which has its three sides equal ; as the triangle ABC. An ISOSCELES TRIANGLE is one which has two of its sides equal ; as the triangle DEF. A SCALENE TRIANGLE is one which has no two of its sides equal ; as the triangle... | |
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