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If a parallelogram and a triangle be upon the same base, and between the same parallels; the parallelogram shall be double of the triangle.
Skeleton propositions &c. of Euclid, books i and ii, with references, by H ... - Pagina xl
door Euclides - 1868
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Practical Plane Geometry: Giving the Simplest Modes of Constructing Figures ...

John Fry Heather - 1890 - 172 pagina’s
...bases, and between the same parallels, are equal to one another. (Eu. I. 35 — 38.) 215. THEOR. 30. — If a parallelogram and a triangle be upon the same base and between tho same parallels, the parallelogram shall be double of the triangle. (Eu. I. 41.) 216. THEOH. 31....
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Report of the Department of Education for the Year ...

...parallel straight lines toward opposite parts are each bisected at the point where they intersect. • 7. If a parallelogram and a triangle be upon the same base and between the same parallels the parallelogram shall be double of the triangle. Describe a right-angled isosceles triangle...
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Report of the Committee of Council on Education in Scotland...[without Appendix]

1901
...lines which bisect each other, prove that the opposite sides of the quadrilateral AC'BD are equal. :>. If a parallelogram and a triangle be upon the same base and between the same parallels, the area of the parallelogram is double that of the triangle. 13. Л1Ю D is a quadrilateral,...
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First Stage Practical Plane and Solid Geometry

G. F. Burn - 1903 - 255 pagina’s
...(Euc. I. 37, 38.) Thus, the isosceles triangle ABC = the scalene triangle DBF (fig. 69). Fig. 69. 3. If a parallelogram and a triangle be upon the same base and between the same parallels, the parallelogram is double of the triangle. (Em. I. 41.) Therefore a diagonal of a parallelogram...
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The Sheet-Metal Worker's Instructor

R. H. Warn, John G. Horner - 2002 - 284 pagina’s
...equal bases, and between the same parallels, are equal to one another. (Enc. I. 35, and I. 36.) (7i) If a parallelogram and a triangle be upon the same base, and between the same parallels, the parallelogram shall be double of the triangle. (Euc. I. 41.) ({) The angle in a semicircle...
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