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" The area of a parallelogram is equal to the product of its base and its height: A = bx h. "
Elements of Plane Geometry: For the Use of Schools - Page 59
by Nicholas Tillinghast - 1844 - 96 pages
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Catalogue of the Officers and Students

Trinity College (Hartford, Conn.) - 1888 - 978 pages
...they are eqiml or supplementary. 4. An inscribed angle is measured by one-half its intercepted arc. 5. The area of a parallelogram is equal to the product of its base and altitude. 6. The area of a trapezoid is equal to one-half the product of its nltitiule and...
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A Treatise on Plane Surveying

Daniel Carhart - Surveying - 1888 - 530 pages
...is equal to the product of its length and breadth, or A = bl where b = breadth and I = length. 51. The Area of a Parallelogram is equal to the product of its base and altitude, or A = bh where b= breadth and h= height. 52. The Area of a Trapezoid is equal to...
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Principles of Plane Geometry

James Wallace MacDonald - Geometry - 1894 - 76 pages
...altitude are commensurable. CASE II. When they are incommensurable. Proposition II. A Theorem. 237. The area of a parallelogram is equal to the product of its base and altitude. COROLLARY. Parallelograms having equal bases and altitudes are equivalent. Proposition...
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Principles of Plane Geometry

James Wallace MacDonald - Geometry - 1889 - 80 pages
...altitude are commensurable. CASE II. When they are incommensurable. Proposition II. A Theorem. 237. The area of a parallelogram is equal to the product of its base and altitude. Proposition III. A Theorem. 238. Parallelograms are to each other as the products...
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Plane and Solid Geometry

Seth Thayer Stewart - Geometry, Modern - 1891 - 428 pages
...sides. PROP. XIII. The area of a rectangle is equal to the product of its base and altitude. PROP. XIV. The area of a parallelogram is equal to the product of its base and altitude. * PROP. XV. The area of a trapezoid is equal to the product of its altitude and...
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The Elements of Plane and Solid Geometry: With Numerous Exercises

Edward Albert Bowser - Geometry - 1891 - 424 pages
...to the second power of its side, being the product of two equal sides. Proposition 4. Theorem. 363. The area of a parallelogram is equal to the product of its base and altitude. base, and BE its altitude. j / Hyp. Let ABCD be a CD, AB its f D To prove CD ABCD...
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Elementary Geometry

William Chauvenet - 1893 - 340 pages
...PROPOSITION IV. The area of a rectangle is equal to the product of its base and altitude. PROPOSITION V. The area of a parallelogram is equal to the product of its base and altitude. PROPOSITION VI. The area of a triangle is equal to half the product of its base...
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Mensuration

William Shaffer Hall - Measurement - 1893 - 88 pages
...9.5781 P. § 23. To find the area of a parallelogram when the base and altitude are given. [14] EULE: The area of a parallelogram is equal to the product of its base and altitude. For Proof: See Ww. Geom., 321. §. 24. To find the area of a trapezoid. [15] RULE:...
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The Elements of Solid Geometry

William C. Bartol - Geometry, Solid - 1893 - 112 pages
...sides proportional. 371. A Parallelogram is a quadrilateral which has its opposite sides parallel. 372. The area of a parallelogram is equal to the product of its base and altitude. 373. The area of a circle equals the square of the radius multiplied by n, ie A...
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Plane and Solid Geometry: Suggestive Method

George Clinton Shutts - Geometry - 1894 - 412 pages
...fractional number of times in the base and altitude the same rule is reached. PROPOSITION IV. 330. Theorem. The area of a parallelogram is equal to the product of its base and altitude. Suggestion. § 323 and § 326. PROPOSITION V. 331. Theorem. The area of a triangle...
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