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 Books Bücher RULE.* Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product will be the area. Commercial class book - Seite 159
von Alfred Newsom Niblett - 1861
Vollansicht - Über dieses Buch ## Mathematics: Compiled from the Best Authors and Intended to be the ..., Band 2

1801 - 426 Seiten
...2333 35 feet. PROBLEM IV. 7o f:nd tlie area of a trapezoid. • RULE.* Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area. • EXAMPLES. * DEMONSTRATION. or (because B»=DE) =-, .-. A ABD+ A BCD, or , , , ABxDE , DCxDE the...
Vollansicht - Über dieses Buch ## The American Tutor's Guide: Being a Compendium of Arithmetic. In Six Parts ...

James Thompson - 1808 - 172 Seiten
...find the area of a trafiezoid, or quadrangle, <u'o cf •whose opposite sides are parallel. RULE — Multiply the sum of the parallel sides by the perpendicular...between them, and half the product •will be the area. EXAMPLES. 13. Required the area of a trapezoid whose parallel sidef »re 25 feel 6 inches, and 18 feet...
Vollansicht - Über dieses Buch ## The principles of architecture, Band 1

Peter Nicholson - 1809
...BF. 14 X36 84 42 504=the area of ABCD. PROBLEM VI. To find the area of a trapezoid. Multiply the half sum of the parallel sides by the perpendicular distance between them, and the product will be the area. EXAMPLE I. What is fhe area of a board or plank in the form of a trapeziod,...
Vollansicht - Über dieses Buch ## The new practical gager

Matthew Iley - 1820
...Area of a Quadrilateral wherein two unequal Sides are Parallel to one another. RULE. Multiply half the sum of the parallel sides by the perpendicular distance between them, and the product will be the area. Let ABCD be a quadrilateral, wherein AC and BD are parallel but unequal;...
Vollansicht - Über dieses Buch ## A Treatise on Practical Gauging

Anthony Nesbit, W. Little - 1822
...bushels. PROBLEM VII. To Jind the area of a trapezoid. RULE. • By the Pen. Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area in square inches. Divide this area by 2 82, 231, and 2150.42, and the respective quotients will be...
Vollansicht - Über dieses Buch ## A treatise of practical mensuration

Anthony Nesbit - 1824 - 434 Seiten
...feet ; what is its area ? Ans. 1131^.2 in. 9 pa. PROBLEM VIII. To find the area of a Irapezoid. RULE. Multiply the sum of the parallel sides by the perpendicular...sides multiplied by their distance will give the area. EXAMPLE. 1. What is the area of the trapezoid ABCD, the parallel sides AD and BC of which are 25 and...
Vollansicht - Über dieses Buch ## The Operative Mechanic, and British Machinist: Being a Practical ..., Band 1

John Nicholson - 1825 - 795 Seiten
...been subtracted. 63 I 189 3 1 189 Prot. 4. To find the Area ofaTrapezoid. Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area. Ex. In a trapezoid, the parallel sides are AB 7, and CD 12, and the perpendicular distance AP or CN...
Vollansicht - Über dieses Buch ## A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - 1825 - 372 Seiten
...42 501 = the arca of ABCD. MENSURATION. Prob. 6. To find the area of a trapezoid. Multiply the half sum of the parallel sides by the perpendicular distance between them, and the product will be the area. Ex. 3. What is the area of a board or plank in the form of a trapezoid,...
Vollansicht - Über dieses Buch ## A Treatise on the New Method of Land Surveying, with the Improved Plan of ...

Thomas Hornby (land surveyor.) - 1827 - 270 Seiten
...• 00000000 2.40000 40 16.00000 Ans. 0A. 2n. 16p. PROBLEM 3. To find the Area of a Trapezoid. RULE. Multiply the sum of the parallel sides by the perpendicular...between them, and half the product will be the area. EXAMPLE. Required the area of the trapezoid AB CD, whose parallel sides AB and DC are 800 and 640 links...
Vollansicht - Über dieses Buch ## An Introduction to Mensuration and Practical Geometry

John Bonnycastle - 1829 - 252 Seiten
...To find the area of a trapezoid, or a quadrangle, two of whose opposite sides are parallel. RULE.* Multiply the sum of the parallel sides by the perpendicular...distance between them, and half the product will be the EXAMPLES. 1. Required the area of the trapezoid ABCD, whose sides AB and DC are 321.51 and 214.24,...
Vollansicht - Über dieses Buch