 The opposite angles of a quadrilateral inscribed in a circle are together equal to two right angles, with converse.  Calendar - Side 286av University of St. Andrews - 1896Uten tilgangsbegrensning - Om denne boken
 | Cowley Oxon, dioc. school - 1860 - 318 sider
...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... | |
 | 464 sider
...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... | |
 | Saskatchewan. Department of Education - 1913 - 202 sider
...rectangle is greater than the perimeter of the square. 3. (a) Prove that the opposite angles of any quadrilateral inscribed in a circle are together equal to two right angles. (6) State and prove the converse of this theorem. 4. (a) Given a straight line cutting two parallel... | |
 | British Columbia. Superintendent of Education - 1897 - 710 sider
...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... | |
 | Great Britain. Parliament. House of Commons - 1863 - 616 sider
...the centre is always greater than one more remote. 8. The opposite angles of any quadrilateral figure inscribed in a circle are together equal to two right angles. A circle cannot be described about a rhombus. 9. If from a point without a circle there be drawn two... | |
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