...separately, find the product of the half sum and the three remainders, and extract its square root. 431. To find the area of a trapezoid. RULE. — Multiply half the sum of the, parallel sides by the altitude. 432. To find the area of a trapezium. RULE. — Multiply the diagonal...

...as in previous problem. Fig. 49. PROB. V 1 1 . — To find the area of a trapezoid. Multiply half of the sum of the two parallel sides by the perpendicular distance between them, and p .c the product will be the / \ area. / \ \ Example. — Let ABCD (Fig. 49) be a trapezoid. The...

...multiply the base by half the perpendicular. PROB. VII. To find the area of a trapezoid. Multiply half of the sum of the two parallel sides by the perpendicular distance between them, and the product will be the area. Let ABCD (Fig. 61) be a trapezoid. The side EC = 40, Fio. 61. Pra....

...the area of a rectangle. Multiply the base by the height. To find the area of a trapezoid. Multiply the sum of the two parallel sides by the perpendicular distance between them and take half the product. To find the area of a triangle. Multiply the base by the altitude and take...

...of which is 1 yd. 10. June, 1890.— Prove that the area of a trapezoid is one-half the. product of the sum of the two parallel sides by the perpendicular distance between them. The area of a trapezoidal field is 4J ac. ; the perpendicular distance between the parallel sides is...

...in line with CO. Measure FK. This is the required distance. To und thc area of a trapezoid. Multiply the sum of the two parallel sides by the perpendicular distance between them and take half the product. To find the area of a triangle. Multiply the base by the altitude and take...

...in Fig. 94. Its altitude or height is the distance between its paralell sides, as E in the figures. To find the area of a trapezoid. Rule. Multiply half the sum of the two paralell sides by the altitude. H 0 D Fig. 94. In an ellipse the line A, Fig. 95, represents the "major,"...

...separately, find the product of the half sum and the three remainders, and extract its square root. 431. To find the area of a trapezoid. RULE. — Multiply half the sum of the parallel sides by the altitude. 432. To find the area of a trapezium. RULE. — Multiply the diagonal...

...is the area of a trapezoid determined? A. The area of a trapezoid is found by multiplying one-half the sum of the two parallel sides by the perpendicular distance between them. Q. 87. What is the area of a trapezoid whose two parallel sides are 12 and 16 feet respectively, and...

...To find the area of a Trapezoid. NOTE. A Trapezoid is a trapezium having two of its sides parallel. RULE. Multiply half the sum of the two parallel sides by the perpendicular distance between them. k Fig. 38. Let the figure be the trapezoid, the sides 7 and 5 being parallel; and 3 the perpendicular...