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" ... is equal to the sum of the areas of the squares on the other two sides. "
The First Book of Euclid's Elements: Arranged for Beginners - Page 149
by Euclid, John Bascombe Lock - 1892 - 167 pages
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A Treatise on Elementary Geometry: With Appendices Containing a Collection ...

William Chauvenet - Geometry - 1871 - 380 pages
...CG+ DG = AH + DH + BF + CF, that is, BC. PROPOSITION XLV.— THEOREM. 102. Conversely, if the sum of two opposite sides of a quadrilateral is equal to the sum of the other two sides, the quadrilateral may be circumscribed about a circle. In the quadrilateral ABCD,...
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A Treatise on Special Or Elementary Geometry, Volumes 1-2

Edward Olney - Geometry - 1872 - 562 pages
...— In any regular polygon, the ^ ^ sum of the perpendiculars let fall from the 7 10. If the sum of two opposite sides of a quadrilateral is equal to the sum of the other two opposite sides, a circle may be inscribed ill it SUG'S.— Bisect any two adjacent angles,...
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A Treatise on Elementary Geometry: With Appendices Containing a Collection ...

William Chauvenet - Geometry - 1872 - 382 pages
...+ CG + DG = AH + DH + BF + CF, that is, PROPOSITION XLV.—THEOREM. 102. Conversely, if the sum of two opposite sides of a quadrilateral is equal to the sum of the other two sides, the quadrilateral may be circumscribed about a circle. In the quadrilateral ABCD,...
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A Treatise on Special Or Elementary Geometry: An advanced course in geometry

Edward Olney - Geometry - 1872 - 102 pages
...COR.—In any regular polygon, the FlG m sum of the perpendiculars let fall from the 710. If the sum of two opposite sides of a quadrilateral is equal to the sum of the other two opposite sides, a circle may be inscribed in it. SUo's. — Bisect any two adjacent angles,...
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A Treatise on Special Or Elementary Geometry: In Four Parts ..., Part 3

Edward Olney - Geometry - 1872 - 96 pages
...centre, is equal to the sum of those let fall from the vertices on the other side. 7 10. If the sum of two opposite sides of a quadrilateral is equal to the sum of the other two opposite sides, a circle may be inscribed in it. BUG'S. — Bisect any two adjacent angles,...
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Elements of Geometry with Exercises for Students: An an Introduction to ...

Aaron Schuyler - Geometry - 1876 - 384 pages
...; .-. ABCD is inscriptible. 185. Proposition III. — Theorem. GEOMETRY.— BOOK II. if the sum of two opposite sides of a quadrilateral is equal to the sum of the otlier two sides, the quadrilateral is circumscriptible. Let the circumscriptible quadrilateral ABDE...
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Elements of Geometry, Conic Sections, and Plane Trigonometry

Elias Loomis - Conic sections - 1877 - 458 pages
...equations, we have • AF+BF+CH+DH=AE+DE+BG+CG; that is, AB+CD •= AD+BC. PROPOSITION V. 8. If the sum of two opposite sides of a quadrilateral is equal to the sum of the Other two sides, a circle can be inscribed within the quadrilateral. I.et ABCD be a quadrilateral,...
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Elementary Geometry: Including Plane, Solid, and Spherical Geometry, with ...

Edward Olney - Geometry - 1883 - 352 pages
...angles. Having proved the preceding, base the proof of this upon that. 3. Theorem.—// the sum of two opposite sides of a quadrilateral is equal to the sum of the other two opposite sides, show that a circle can be inscribed in the quadrilateral. 4. Theorem.—//...
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Treatise on Trigonometry ...

William Ernest Johnson - Plane trigonometry - 1889 - 574 pages
...the inscribed circle is equal to half the difference between the two other sides. 10. If the sum of two opposite sides of a quadrilateral is equal to the sum of the two other opposite sides, a circle may be inscribed in the quadrilateral. 11. The angle which each...
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Elements of Geometry

George Washington Hull - Geometry - 1897 - 408 pages
...two circles tangent internally, the chords of the intercepted arcs are parallel. 568. If the sum of two opposite sides of a quadrilateral is equal to the sum of the other two sides, the quadrilateral may be circumscribed about a circle. 569. The centre of a circle...
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