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" The opposite angles of a quadrilateral inscribed in a circle are together equal to two right angles, with converse. "
Proceedings of the Edinburgh Mathematical Society - Página 11
por Edinburgh Mathematical Society - 1894
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Calendar

University of St. Andrews - 1891
...of a parallelogram is equal to the sum of the squares on the sides. 12. The opposite angles of every quadrilateral inscribed in a circle are together equal to two right angles. ABC is a triangle : AD, BE are perpendicular to BC, AC respectively : prove that the triangle ODE is...
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The calendar of the University college of Wales

Wales univ, univ. coll. of Wales - 1878
...that parallelograms on the same base and between the same parallels are equal to one another. 8. Prove that the opposite angles of a quadrilateral inscribed in a circle are supplementary. 9. If 0 be a point within a triangle ABC, such that the angles BOG, COA, AOB are equal,...
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Calendar

University of St. Andrews - 1901
...the centre of a circle is double an angle at the circumference standing on the same arc, and deduce that the opposite angles of a quadrilateral inscribed in a circle are supplementary. Two circles ABC, ABD, with centres 0 and Q, intersect at right angles ; AC and AD are...
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Transactions, Volumen14

Actuarial Society of America - 1913
[ Lo sentimos, el contenido de esta página está restringido. ]
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A Shorter Geometry

...its angular points, and measure the length of its radius. 7. Prove that the opposite angles of any quadrilateral inscribed in a circle are together equal to two right angles. ABCD is a parallelogram and the circle described about the triangle ABC cuts CD, or CD produced, in...
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The Calendar of the University of Toronto ...

University of Toronto. Faculty of Arts - 1907
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Report of the examination held (Dec. 1859)-73

Cowley Oxon, dioc. school - 1860
...which does not pass through the centre it shall cut it at right angles. 10. The opposite angles of any quadrilateral inscribed in a circle are together equal to two right angles. II. Describe an isosceles triangle having each angle at the base double the third angle. 12. If two...
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Annual Report of the Public Schools of the Province of British Columbia

British Columbia. Superintendent of Education - 1897
...equal to when the side subtends an obtuse angle ? (b.) What is a Gnomon ? 6. The opposite angles of any quadrilateral inscribed in a circle are together equal to two right angles. TRICONOMETRY. 1. (a.) The number of degrees in a certain angle added to the number of grades is 152...
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The London University Calendar

London univ - 1874
...internally, the line joining their centres passes through the point of contact. 7. The opposite angles of any quadrilateral inscribed in a circle are together equal to two right angles. 8. A segment of a circle being given, find the complete circle of which it is a segment. 9. Prove that...
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The Glasgow University Calendar

University of Glasgow - 1901
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