| William Frothingham Bradbury - 1872 - عدد الصفحات: 124
...be neglected. 91 Corollary. The area of a square is the square of one of its sides. THEOREM III. 101 The area of a parallelogram is equal to the product of its base and altitude. Let DF be the altitude of the paral- E B_ _ F 0 lelogram ABCD ; then the area of / . \7 At A draw the perpendicular... | |
| Charles Davies - 1872 - عدد الصفحات: 464
...continued product of the number of linear units in each of the three lines. Thus, when we say that the area of a parallelogram is equal to the product of its base and altitude, we mean that the number of superficial units in the parallelogram is equal to the number of linear... | |
| William Frothingham Bradbury - 1873 - عدد الصفحات: 132
...neglected. 9, Corollary. The area of a square is the square of one of its sides. THEOREM III. 10« The area of a parallelogram is equal to the product of its base and altitude. ' — 7 -- " - '• — 7 lelogram AB CD ; then the area of j / / Let DF be the altitude of the paral-... | |
| Henry William Jeans - 1873 - عدد الصفحات: 292
...57°.39577— 57°-29577 — 5729577" whence BAC=53° 38' 30", and a;=100xtan. BAC=407-5. PROB. 63. Since the area of a parallelogram is equal to the product of its base by its altitude,* and the area of triangle =£ area of a parallelogram with same base and altitude,... | |
| Henry W. Jeans - 1873 - عدد الصفحات: 272
...4x57°-29577 57°-29577 5729577 whence BAC=53° 38' 30", and *=100 xtan. BAC=407'5. PEOB. 63. Since the area of a parallelogram is equal to the product of its base by its altitude,* and the area of triangle = J area of a parallelogram with same base and altitude,... | |
| Charles Davies - 1874 - عدد الصفحات: 464
...is equal to the area of a rectangle constructed with the lines as sides. D E PROPOSITION V. THEOREM. The area of a parallelogram is equal to the product of its base and altitude. Let AB CD be a parallelogram, AB its base, and BE its altitude : then will the area of ABCD be equal to... | |
| Adrien Marie Legendre - 1874 - عدد الصفحات: 500
...continued product of the number of linear units in each of the three lines. Thus, -when we say that the area of a parallelogram is equal to the product of its base and altitude, we mean that the number of superficial units in the parallelogram is equal to the number of linear... | |
| William Guy Peck - 1876 - عدد الصفحات: 376
...expresses the area of a rectangle whose adjacent sides are the given lines. PROPOSITION III. THEOREM. The area of a parallelogram is equal to the product of its base and altitude. Let ACDE be a parallelogram; draw AL K_ and CK perpendicular to AC meeting ED, and ED prolonged at L and... | |
| 1876 - عدد الصفحات: 646
...a triangle divides the opposite side into segments which are proportional to the adjacent sides. 3. The area of a parallelogram is equal to the product of its base and altitude. 4. How do you find the area of a trapezoid ? The areas of similar polygons are to each other in what... | |
| Alfred Kirk, Henry Holmes Belfield - 1876 - عدد الصفحات: 220
...annexing to it, in the / manner shown, an equal / triangle, may form a par/ allelogram. 224=. Since the area of a parallelogram is equal to the product of its base and altitude; and since every parallelogram may be divided into two equal triangles having the same base and altitude... | |
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