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" Hence, The area of a rectangle is equal to the product of the length by the breadth. "
New Elementary Arithmetic: Embracing Mental and Written Exercises for ... - Σελίδα 130
των Benjamin Greenleaf - 1879 - 224 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

New School Algebra

George Albert Wentworth - 1898 - 407 σελίδες
...the length of the rectangle, and x — 5.'= the number of feet in the width of the rectangle. Since the area of a rectangle is equal to the product of the number of units of length in the length and width of the rectangle, (x + 6) (x — 5) = the area of...

The Essentials of Geometry (plane)

Webster Wells - 1898 - 242 σελίδες
...following : If the unit of surface is a square whose side is the linear unit, the number which expresses the area of a rectangle is equal to the product of the numbers which express the lengths of its sides. An interpretation of this form is always understood...

The Essentials of Geometry

Webster Wells - 1899 - 395 σελίδες
...following : If the unit of surface is a square whose side is the linear unit, the number which expresses the area of a rectangle is equal to the product of the numbers which express the lengths of its sides. PLANE GEOMETRY. — BOOK IV. 307. Cor. The area of...

Ferrell's Advanced Arithmetic, Βιβλίο 2

John Appley Ferrell - 1901 - 408 σελίδες
...-LX J. = ba, answer. Using A for area, the result may be written as follows : RELATION I. Abstractly, the area of a rectangle is equal to the product of the base and altitude. EXAMPLES. 1. Find the area of a wall 20 ft. long and 7£ ft. high. Solution: (1)...

A Mental Arithmetic

Israel C. McNeill - 1902 - 141 σελίδες
...square units are there in a rectangle 10 units long and 7 units wide ? 3. The number of square units in the area of a rectangle is equal to the product of the numbers of the like units in the lenyili and width. What is the area of a rectangle 6 in. long and...

Elementary Algebra

George Albert Wentworth - 1906 - 905 σελίδες
...and x— 10 = the number of feet in the width of the rectangle. Since the number of square units in the area of a rectangle is equal to the product of the number of linear units in the length multiplied by the number of linear units in the width of the rectangle,...

First-year Mathematics for Secondary Schools

George William Myers, William Rockwell Wickes, Ernst Rudolph Breslich, Harris Franklin MacNeish, Ernest August Wreidt - 1906 - 181 σελίδες
...D=rt. Find D, if (1) r=30 ft. per second, and /=5 seconds; (2) r=5 mi. per hour, and t=1j hours. 2. The area of a rectangle is equal to the product of the base and the altitude; ie, A =ba. Find A, if (1) 6 = 13 ft., and a = 24 ft.; (2) 6 = 10.2 in., and...

New Plane Geometry

Webster Wells - 1908 - 174 σελίδες
...following : If the unit of surface is a square whose side is the linear unit, the number which expresses the area of a rectangle is equal to the product of the numbers which express the lengths of its sides. An interpretation of this form is always understood...

New Plane and Solid Geometry

Webster Wells - 1908 - 298 σελίδες
...following : If the unit of surface is a square whose side is the linear unit, the number which expresses the area of a rectangle is equal to the product of the numbers which express the lengths of its sides. An interpretation of this form is always understood...

First-year Mathematics for Secondary Schools

George William Myers - 1909 - 365 σελίδες
...Find D, if (1) r=y> ft. per second, and ¿ = 5 seconds; (2) r = 5 mi. per hour and / = 17 hours. 2. The area of a rectangle is equal to the product of the base and the altitude; that is, A =6a. Find A, if (1) 6 = 13 ft., and « = 24 feet; (2) 6 = 10.2 in.,...




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