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 Βιβλία Βιβλία 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

...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.,...