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Books Books 1 - 10 of 63 on D ; wherefore the remaining angle at C is equal to the remaining angle at F ; Therefore....
" D ; wherefore the remaining angle at C is equal to the remaining angle at F ; Therefore the triangle ABC is equiangular to the triangle DEF. Next, let each of the angles at C, F be not less than a right angle ; the triangle ABC is also, in this case,... "
The Elements of Euclid: Also the Book of Euclid's Data ...cor. viz. The ... - Page 157
by Robert Simson - 1804
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Euclid's Elements of geometry: from the Latin translation of Commandine. To ...

John Keill - Logarithms - 1723 - 364 pages
...the Angle at A is one half of the Angle BGC; and the Angle at D one half of the Angle EHF. Therefore the Angle at A is equal to the Angle at D. Wherefore Angles, that ftand upon equal Circumferences in equal Circles•, are equal to each other, whether...
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Euclid's Elements of geometry: from the Latin translation of Commandine. To ...

John Keill - Trigonometry - 1733 - 397 pages
...the Angle at A is one half of the Angle BGC; and the Angle at D one half of the Angle EHF. Therefore the Angle at A is equal to the Angle at D. Wherefore Angles, that ft and upon equal Circumferences in equal Circles, are equal to each other, whether they...
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The Elements of Euclid: The errors, by which Theon, or others, have long ago ...

Robert Simson, Euclid - Trigonometry - 1762 - 466 pages
...lefs than a right angle ; which is abfurd. Therefore the angles ABC, DEF are not unequal, that Is, they are equal, and the angle at A is equal to the angle at D ; Book VI. wherefore the remaining angle at C is equal to the remaining angle at F. therefore the triangle...
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Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth Books

Euclides, David Gregory - Mathematics, Greek - 1765 - 464 pages
...is abfurd: "Therefore the angle ABC is not unequal to the angle DEF ; they are therefore equal. But the angle at A is equal to the angle at D ; wherefore...equal to the remaining angle at F : Therefore the triangles ABc, DEF are equiangular. Again, let us fuppofe each of the angles c, F to be not iels than...
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The Elements of Euclid, viz: The errors, by which Theon, or others, have ...

Robert Simson, Euclid - Trigonometry - 1775 - 520 pages
...: And the angle at A is half of the angle BGC, and the angle at D half of the angle EHF : Therefore the angle at A is equal to the angle at D. "Wherefore, in equal circles, &c. Q^ED PROP. Book III.' PROP. XXVIII THEO R. TN equal circles, equal ftraight lines...
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The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - Trigonometry - 1781 - 466 pages
...it. and the angle at A is half of the angle BGC, and the angle at D half of the angle EHF. therefore the angle at A is equal to the angle at D. Wherefore, in equal circles, &c. ( ED _J Book I II. PROP. XXVIH. THEO R. IN equal circles, equal ftraight lines...
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The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 520 pages
...it : And the angle A is half of the angle BGC, and the angle at D half of the angle EliF : Therefore the angle at A is equal to the angle at D Wherefore, in equal circles, &e. Q. E D. PROP. .1. i PROP. XXVIII. THEO R. Book in. "IN equal circles, equal ftraight...
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The elements of Euclid: with dissertations intended to assist and ..., Volume 1

James Williamson - Mathematics - 1781
...and the angle at A is half of the angle BGC ; and the angle at D is half of the angle EHF : wherefore the angle at A is equal to the angle at D. Wherefore in equal circles, the angles which ftand upon equal cir- Book in. cumferences are equal to one another...
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Elements of Geometry;: Containing the First Six Books of Euclid, with Two ...

John Playfair - Euclid's Elements - 1795 - 400 pages
...it. and the angle at A is half of the angle BGC, and the angle at D half of the angle EHF : therefore the angle at A is equal to the angle at D. Wherefore, in equal circles, &.c. QED PROP. XXVIII. THE OR. TN equal circles, equal ftraight lines cut off equal...
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The elements of Euclid: viz. the first six books, with the eleventh and ...

Alexander Ingram, Robert Simson - Trigonometry - 1799 - 351 pages
...S. ig i7- 1• h i3. i. BooK VI. Therefore the angles ABC, DEF are not unequal, that is, \~s*,T>*J they are equal; and the angle at A is equal to the angle at D • therefore the remaining angle at C is equal to the remaining angle at F : Wherefore the triangle...
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