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" A Square is a figure having four equal sides and four right angles. "
Dubbs' Complete Mental Arithmetic: A Volume of Carefully Graded Exercises ... - Page 116
by Eugene L. Dubbs - 1893 - 220 pages
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Introduction to The National Arithmetic: On the Inductive System Combining ...

Benjamin Greenleaf - Arithmetic - 1849 - 336 pages
...rods or 4 Roods, or 160 '. 640 Acres R. A. 1 = SM 1= 4 = 1 = 640 = 2560 = 3ft. = lyd. Square foot. A square is a figure having four equal sides, and four right angles. In this diagram, the large square represents a square yard, and each of the smaller squares within...
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Mensuration, Mechanical Powers, and Machinery: The Principles of Mensuration ...

Daniel Adams - Measurement - 1850 - 144 pages
...Parallelogram is a right-lined figure, whose opposite sides are parallel, and consequently equal. 23. A Square is a figure having four equal sides and four right angles. It is a parallelogram whose sides are all equal, and whose angles are all right angles. Thus, ABCD...
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Introduction to the National Arithmetic ...

Benjamin Greenleaf - 1851 - 332 pages
...flooring, plastering, &c., where length and breadth only are considered. TABLE. 3ft. = lyd. Square foot. A square is a figure having four equal sides, and four right angles. In this diagram, the large sqnare represents a square yard, and each of the smaller sfl^an;s within...
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Indroduction to the National Arithmetic ...

Benjamin Greenleaf - 1854 - 342 pages
...27878400 •• marked ft. yd. PR. A. SM . 144 1296 39204 1568160 6272640 : 4014489600 Square foot. A square is a figure having four equal sides, and four right angles. In this diagram, the large square represents a square yard, and each of the smaller squares within...
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The Measure of the Circle: Perfected in January, 1845

John Davis (of Providence, R. I.) - Circle-squaring - 1854 - 170 pages
...triangle has one obtuse angle. All other triangles have three acute angles, and are called acute angled. A rectangle is a figure having four sides and four right angles. A square is a rectangle whose four sides are equal to each other. A rhombus is a plane figure, ha'ving...
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The Progressive Practical Arithmetic: Containing the Theory of Numbers, in ...

Horatio Nelson Robinson - Arithmetic - 1859 - 352 pages
...thus, ABC and CBD are oblique angles. A CASE I. 451. To find the area of a square or a rectangle. 452. A Square is a figure having four equal sides and four right angles. 453. A Rectangle is a figure having four right angles, and its opposite sides equal. RULE. Multiply...
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The Progressive Higher Arithmetic, for Schools, Academies, and Mercantile ...

Horatio Nelson Robinson - Arithmetic - 1860 - 444 pages
...CB. NOTE. - — The altitude of a right-angled triangle is the side called the perpendicular. 675. A Square is a figure having four equal sides and four right angles 676. A Rectangle or Parallelogram c is a figure having four right angles, and its opposite sides equal....
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Analysis of Written Arithmetic, Bk. 1: An Elementary Manual

Stoddard A. Felter - Arithmetic - 1862 - 316 pages
...many steps in the 252nd example? Are they general or analytical ? LESSON XXXI. SQUARE MEASURE. 83. A square is a figure having four equal sides and four right angles or corners ; a square foot is a square 1 foot in length and 1 foot in breadth, thus : Required, the...
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The Analysis of Written Arithmetic: Book First, Designed for Public and ...

Stoddard A. Felter - Arithmetic - 1862 - 312 pages
...used in reduction ascending ? Which in reduction descending ? LESSON XXV. SQUARE MEASURE. 1ft. 91* A Square is a figure having four equal sides and four right angles or corners ; a square foot is a square 1 foot in length and 1 foot in breadth. * NOTES.— 1. A link...
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The Analysis of Written Arithmetic: Book First, Designed for Public and ...

Stoddard A. Felter - Arithmetic - 1866 - 338 pages
...is ueod in reduction ascending? Which in reduction descending? LESSON XXV. SQUARE MEASURE. 1ft. 91, A Square is a figure having four equal sides and four right angles or corners ; a square foot is a square 1 foot in length and 1 foot in breadth. * NOTES.— 1. A link...
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