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The angle in a semicircle is a right angle; the angle in a segment greater than a semicircle is less than a right angle; and the angle in a segment less than a semicircle is greater than a right angle.
Elements of Geometry: Containing Books 1. to Vi. and Portions of Books Xi ... - Página 176
por Euclides, James Hamblin Smith - 1879 - 349 páginas
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## Elements of Euclid [selections from book 1-6] adapted to modern methods in ...

Euclides - 1874
...is a right angle, an angle in a segment less than a semicircle is greater than a right angle, and an angle in a segment greater than a semicircle is less than a right angle. For the angle AOB at the centre may be increased till it becomes two right angles (I. Def. 9), then...
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## Designing Valve Gearing

Edward J. Cowling Welch - 1875 - 283 páginas
...stated in the enunciation to be, that " in a circle the angle in a semicircle is a right angle ; but the angle in a segment greater than a semicircle is...less than a semicircle is greater than a right angle" is the basis upon which the system, applied in the following pages, is directly founded : and it is...
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## Elements of geometry, based on Euclid, books i-iii

Edward Atkins - 1876 - 119 páginas
...bisected in DQEF Proposition 31. — Theorem. In a circle, the angle in a semicircle is a right angle; but the angle in a segment greater than a semicircle is...semicircle is greater than a right angle. Let ABC be a circle, of which BC is a diameter, and E the centre; and draw CA, dividing the circle into the segments...
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## Examination Christmas,1875

...in the circumference. SECTION III. 1. In a circle, the angle in a semicircle is a right angle ; but the angle in a segment greater than a semicircle is...less than a semicircle is greater than a right angle. The greatest rectangle that can be inscribed in a circle is a square. Divide a circle into two segments,...
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## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1876 - 403 páginas
...the angle in a lemicircle i3 a right angle ; but the angle in a segment greater than a semicircle ii less than a right angle ; and the angle in a segment...than a semicircle is greater than a right angle. Let ABCD be a circle, of which the diameter isBC, and center E, and let CA be drawn, dividing the circle...
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## Modern geometry [ed.] with an appendix by W.B. Jack

Richard Wormell - 1876
...angle in a semicircle is a right angle ; the angle in a segment less than a semicircle is greater than a right angle ; and the angle in a segment greater than a semicircle is less than a right angle. Let А В be a diameter and А С a chord of a circle, ADBE ; then Л А С В in the semicircle AC...
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## Annual Report

1876
...Give the algebraical equivalent of this proposition. 6. The angle in a semi-circle is a right angle, the angle in a segment greater than a semi-circle is less than a right angle, and in a segment less than a semi-circle it is greater than a right angle. Show how this follows from the...
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## Report of Her Majesty's Civil Service Commissioners: Together ..., Volumen21

1877
...each other. Describe a circle passing through two given points, and touching a given circle. 7. In any circle, the angle in a semicircle is a right angle,...less than a semicircle is greater than a right angle. The sides of two acute-angled triangles inscribed in the same circle cannot intersect in fewer than...
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## Mathematical exercises

Samuel H.. Winter - 1877
...Prove by means of the equation to a circle that the angle in a semicircle is a right angle, and that the angle in a segment greater than a semicircle is less than a right angle. 13. Find the equation to the tangent of an ellipse; prove that from a given point two tangents can...
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## The elements of plane geometry, from the Sansk. text of Ayra Bhatta, ed. by ...

Āryabhaṭa - 1878
...if the centre falls without the triangle, the angle opposite to the side beyond which it is, being in a segment less than a semicircle, is greater than a right angle (24. cor.}. Conversely, if the given trwngle le acute-angled, tht centre of the circle falls within...
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