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 Βιβλία Βιβλία 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. The Elements of Euclid, containing the first six books, with a selection of ... - Σελίδα 112
των Euclides - 1874
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## The American Practical Navigator: Being an Epitome of Navigation and ...

Nathaniel Bowditch - 1888 - 704 σελίδες
...are equal to each other; for they are all measured by the same arc, viz : half the arc AB. XVI. An angle in a segment greater than a semicircle is less than a right angle. Thus, if ABC be a segment greater than a semicircle, the arc, AC, on which it stands must be less than... ## Annual Report

Canada. Department of the Interior - 1888 - 756 σελίδες
...a right angle ; that in a segment greater than a semi circle is less than an right angle, and that in a segment less than a sem-icircle is greater than a right angle1 9. Use the above proposition in a practiual method for drawing from a given point at or near... ## Woolwich Mathematical Papers for Admission Into the Royal Military Academy ...

E. J. Brooksmith - 1889 - 354 σελίδες
...is always greater than one more remote ; and the greater is nearer to the centre than the less. 7. In a circle the angle in a semicircle is a right angle,...less than a semicircle is greater than a right angle. Two circles, whose centres are 0, O', touch each other in the point A, and are met by a common tangent... ## Examinations Papers

1889 - 584 σελίδες
...without a circle a straight line touching the circle. 9. The angle in a semicircle is a right angle, the angle in a segment greater than a semicircle is...less than a semicircle is greater than a right angle. ENGLISH. The Board qf Examiner*. Vote.— Fay particular attention to the spelling: and punctuation... ## The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 538 σελίδες
...pt. B on the arc ABC to A and C, and drawing the external bisector of the angle ABC. (See Ex. 347.) PROPOSITION 31. THEOREM. In a circle the angle in...than a semicircle is greater than a right angle. Let ABCD be a 0 of which BC is a diamr. and E the centre, and let CA be drawn dividing the 0 into segts.... ## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1892 - 460 σελίδες
...circumference, of a circle. PROPOSITION 31. THEOREM. Tlie amJle in a semicircle is a right angle : the angle in a segment greater than a semicircle is...than a semicircle is greater than a right angle. Let ABCD be a circle, of which BC is a diameter, and E the centre; and let AC be a chord dividing the circle... ## Plane Geometry

William James Milne - 1899 - 258 σελίδες
...in a segment greater than a semicircle is lens than a right angle. 229. Cor. IV. An angle \nscribed in a segment less than a semicircle is greater than a right angle. Proposition XVIII 230. Draw a circle and two intersecting chords ; construct an inscribed angle equal... ## Plane and Solid Geometry

William James Milne - 1899 - 398 σελίδες
...227. Cor. II. An angle inscribed in a semicircle is a right angle. 228. Cor. III. An angle inscribed in a segment greater than a semicircle is less than a right angle. Proposition XVIII 230. Draw a circle and two intersecting chords ; construct an inscribed angle equal... ## A Text-book of Euclid's Elements for the Use of Schools. Books I ..., Βιβλίο 1

Henry Sinclair Hall, Frederick Haller Stevens - 1900 - 330 σελίδες
...properties of a tangent to a circle. PROPOSITION 31. THEOREM. The angle in a semicircle is a right angle. The angle in a segment greater than a semicircle is less than a right angle. The angle in a segment less than a semicircle is greater than a right angle. F/ Let ABCD be a circle,... ## Plane Geometry

Edward Brooks - 1901 - 278 σελίδες
...one-half of the semi-circumference AEC (Th. XVIII.). COR. 2 — Any tingle, as ABC, ADC, etc., inscribed in a segment greater than a semi-circle, is less than a right angle. For it is measured by less than onehalf of a semi-circumference. COR. 3. — Any angle, AEC, inscribed...