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In a right-angled triangle, the side opposite the right angle is" called the Hypothenuse ; and the other two sides are cal4ed the Legs, and sometimes the Base and Perpendicular.
Elements of Geometry: With Practical Applications ... - Page 43
by George Roberts Perkins - 1847 - 308 pages

## Primary Elements of Plane and Solid Geometry: For Schools and Academies

Evan Wilhelm Evans - Geometry - 1862 - 116 pages
...by straight lines. 3. A TRIANGLE is a polygon of three sides. If it has one right angle it is called a right-angled triangle. The side opposite the right angle is called the HYPOTENUSE. A triangle which has no right angle is called an oblique-angled triangle. An isosceles...

## Elements of Plane Trigonometry: And Their Application to the Measurement of ...

William Frothingham Bradbury - Plane trigonometry - 1864 - 324 pages
...three sides unequal ; as GH I. 21. A RIGHT-ANGLED TRIANGLE is one which has a right angle ; as JK L. The side opposite the right angle is called the hypothenuse, and the other two sides the legs, or the base and perpendicular. • 22. An OBTUSE-ANGLED TRIANGLE is one which has an obtuse...

## Practical Arithmetic, by Induction and Analysis

Joseph Ray - Arithmetic - 1857 - 360 pages
...one side is perpendicular to another, the angle between them is a right angle, and the triangle is a right-angled triangle. The side opposite the right angle is called the hypotenuse; the other two sides, the base and perpendicular. Thus, ABC is a right-angled triangle;...

## New Practical Arithmetic in which the Science and Its Applications are ...

Henry Bartlett Maglathlin - Arithmetic - 1869 - 332 pages
...obtuse-angled triangle. A EIGHT- ANGLED TRIANGLE has one right angle. Thus, The figure JKL is a right angled triangle. The side opposite the right angle is called the HYPOTHENUSE, and the side perpendicular to the base, the PERPENDICULAR. Thus, In the figure JKL, the side JL is the HYPOTHENUSE,...

## Elements of geometry, with ... trigonometry

André Darré - 1872 - 226 pages
...frequently called the base, and the point in which the other two sides meet each other is called the vertex. In a right-angled triangle the side opposite the right angle is called the hypothcnuse. Since a straight line is the shortest that can be drawn between two points (Axiom 2),...

## Common School Arithmetic on the Analytic System: With an Appendix of the ...

Shelton P. Sanford - Arithmetic - 1872 - 402 pages
...straight lines. When one of the angles is formed by two lines perpendicular to each other, the triangle is a RIGHTANGLED TRIANGLE. The side opposite the right angle is called the hypotenuse; the other two sides the base and perpendicular. Thus, ABC is a right-angled triangle ;...

## New Practical Arithmetic: In which the Science and Its Applications are ...

Henry Bartlett Maglathlin - Arithmetic - 1873 - 362 pages
...obtuse-angled triangle. A RIGHT- ANGLED TRIANGLE has one right angle. Thus, The figure JKL is a right angled triangle. The side opposite the right angle is called the HYPOTHENUSE, and the side perpendicular to the base, the PERPENDICULAR. Thus, In the figure JKL, the side JL is the HYPOTHENUSE,...

## New Practical Arithmetic: In which the Science and Its Applications are ...

Henry Bartlett Maglathlin, Benjamin Greenleaf - Arithmetic - 1876 - 374 pages
...angle. ACUTE-ANGLED TRIASGLE. OBTI-SE-ASCLED TRIAKGLZ. A RIGHT-ANGLED TRIANGLE has one right angle. The side opposite the right angle is called the HYPOTHENUSE, and the side perpendicular to the base, the PERPENDICULAR. RiGHT-ASGLED TEIANGLE. 411. By Geometry there may...