 | John Gummere - Surveying - 1814 - 398 pages
...breadth. But the area is equal to the number of squares or superficial measuring units; and therefore the area of a rectangle is equal to the product of the length and breadth. Again, a rectangle is equal to any oblique parallelogram of an equal length and perpendicular... | |
 | Arthur Browne (M.A.) - Differential calculus - 1824 - 232 pages
...equal to a linear unit, then the square of the hypothenuse must PROP. IV. The number, which represents the area of a rectangle, is equal to the product of the numbers representing its adjacent sides. Let ABCD be a rectangle, and let the side AB = a, and BC =... | |
 | William Whewell - 1837 - 226 pages
...containing the angles, namely Ca, Cb, will coincide. And it will be true that A a : Bb :: CA : CB. LEMMA 4. The area of a rectangle is equal to the product of the two sides. If A, B be the two sides, the rectangle is = A x B. COB. If B be the base and A the altitude... | |
 | Bengal council of educ - 1848 - 394 pages
...rectangles contained by the undivided line, and the several parts of the divided line. Hence prove that the area of a rectangle is equal to the product of the base and its altitude. 4. The angle at the centre of a circle is double than at the circumference upon... | |
 | Education - 1851 - 626 pages
...rectangles contained by the undivided line, and the several parts of the divided line. Hence prove that the area of a rectangle is equal to the product of the base and its altitude. 4. The angle at the centre of a circle is double than at the circumference upon... | |
 | Thomas Kentish - Geometrical drawing - 1852 - 272 pages
...circles, cycloids, and ellipses; and the surfaces of prisms, cylinders, pyramids, cones, and spheres. The area of a rectangle is equal to the product of the length and breadth. The area of a trapezoid is found by multiplying half the sum of the parallel sides by... | |
 | Thomas Kentish - Mathematical instruments - 1854 - 268 pages
...circle?, cycloids, and ellipses; and the surfaces of prisms, cylinders, pyramids, cones, and spheres. The area of a rectangle is equal to the product of the length and breadth. The area of a trapezoid is found by multiplying half the sum of the parallel sides by... | |
 | Henry Bartlett Maglathlin - Arithmetic - 1869 - 332 pages
...feet, or as many as the product of the number expressing the length by that expressing the breadth. Hence, The area of a rectangle is equal to the product of the length by the breadth. Table. 144 square inches (sq. in.) make 1 square foot, sq. ft. 9 square feet, 1 square yard, sq. yd.... | |
 | Literary and Historical Society of Quebec - Canada - 1871 - 524 pages
...triangular portion be cut from one end and added to the other, the figure becomes a rectangle ; and as the area of a rectangle is equal to the product of the number of units in its base and altitude, it follows that the area of any triangle is equal to half... | |
 | Henry Bartlett Maglathlin - 1872 - 220 pages
...sides and four equal angles. A Rectangle is any surface having four sides and four equal angles. 90. The area of a square, each of whose sides is 1 foot,...Rectangle ? To what is the area of a rectangle equal ? 91. Surface or Square Measure is used in measuring surfaces. Table. 144 square inches (sq. in.) are... | |
| |
Hence, The area of a rectangle is equal to the product of the length by the breadth. 
