 | Thomas Hornby (land surveyor.) - 1827 - 318 σελίδες
...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 distance 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... | |
 | John Bonnycastle - 1829 - 256 σελίδες
...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,... | |
 | John Nicholson (Civil engineer) - 1830 - 240 σελίδες
...390 3136 4225 3136 1089 ( 33 The perpendicular, which is the root 9 of the remainderof the squareof the • hypotenuse AC, when the square 63 I 189 of...distance AP or CN is 9 : required the area. 7 12 19 9 171 855 the area. Prob. 5. To find the Area of a Trapezium. Case for any trapezium.— Divide it into two... | |
 | Edinburgh encyclopaedia - 1830 - 856 σελίδες
...quadrilateral, of which two opposite sides are parallel but not equal. RULE. Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product is the area. In the trapezoid ABCD, draw the diagonal AC, and from its extremities draw AE, CF at right... | |
 | Ira Wanzer - 1831 - 408 σελίδες
...40, and 50 rods? Ans. 3f A. PROBLEM V, — To find the area of a Trapezoid. RULE. — Multiply half the sum of the two parallel sides by the perpendicular distance between them, and the pr«' duct will be the area. Ex. How many square feet are contained in a board which is 12 feet... | |
 | Zadock Thompson - 1832 - 186 σελίδες
...is the area ? Ans. 54.299 rods. 307. To find the area of a trapezoid. (65) RULE. — Multiply half the sum of the two parallel sides by the perpendicular distance between them, and the product will be the area. 1. One of the two parallel sides of a trapezoid is 7.5 chains, and the... | |
 | Zadock Thompson - 1832 - 186 σελίδες
...is the area ? Ans. 54.299 rods. 307. To find (he. area of a trapezoid. (65) RULE. — Multiply half the sum of the two parallel sides by the perpendicular distance between them, and the product will be the area. 1. One of the two parallel sides of a trapezoid is 7.5 chains, and the... | |
 | Francis Walkingame - 1833 - 204 σελίδες
...half the product will be the area. D. Fig. 5. В DE + BF x AC That is, ! = the area. For a trapezoid. Multiply the sum of the two parallel sides by the...between them ; and half the product will be the area. (1) How many square yards of paving are in the trapezium, whose diagonal is 65 feet, and the perpendiculars... | |
 | Ireland commissioners of nat. educ - 1834 - 370 σελίδες
...required its area ? Ans. 700-99. PROBLEM XIII. To find the area of a Trapezoid RULE. Multiply half the sum of the two parallel sides by the perpendicular distance between them, and the product will give the area.* 1. Let A BCD be a trapezoid, the side AB = r — -¡ i 40, D С =... | |
 | John Bonnycastle - 1835 - 308 σελίδες
...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 area. EXAMPLES. 1. Required the area of the trapezoid ABCD, whose sides AB and DC are 321.51 and 214.24,... | |
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Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area. 
