| Euclid - 1826 - 234 pages
...COROLLARY. Hence it is manifest, when the centre of the circle falls within the triangle, the angle BAC, **in a segment greater than a semicircle, is less than a right angle** ; but when the centre falls on the right line вс, the angle BAC, in a semrrcircle, is a right angle;... | |
| Euclides - 1826 - 226 pages
...COROLLARY. Hence it is manifest, when the centre of the circle falls within the triangle, the angle BAC, **in a segment greater than a semicircle, is less than a right angle;** but when the centre falls on the right line в с, the angle BAC, in a semircircle, is a right angle;... | |
| John Playfair - Geometry - 1829 - 210 pages
...segment greater than a semicircle is acute; and the angle in a segment less than a semicircle is obtuse. **Let ABCD be a circle, of which the diameter is BC, and** the centre E; draw C\ dividing the circle into the two segments ABC, ADC; draw BA, AD, DC; the angle... | |
| Pierce Morton - Geometry - 1830 - 584 pages
...semi-circumference, that is, by a quadrant. Cor. 2. (Eue. iii. 31 second part of.) The angle, which is **in a segment greater than a semicircle, is less than a right angle ; and the angle,** which is in a segment less than a semicircle, is greater than a and let the diameters A Qj, QQ, be... | |
| John Playfair - Euclid's Elements - 1833 - 346 pages
...Which was to be done. PROP. XXXI. THEOR. In a circle, the angle in a semicircle is a right angle ; but **the angle in a segment greater than a semicircle is...ABCD be a circle, of which the diameter is BC, and** fcentre E ; draw CA dividing the circle into the segments ABC, ADC, and join BA, AD, DC ; the angle... | |
| Euclides - 1833 - 304 pages
...angle in a semicircle is a right angle; the angle in a segment greater than a semicircle is an acute **angle ; and the angle in a segment less than a semicircle is** obtuse. PART 1. The angle in a semicircle is a right angle. Draw a diameter connecting the extremities... | |
| Euclides - 1834 - 518 pages
...Ihe angle in a semicircle is 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 less** litan a semicircle, is greater than a right angle. Let ABCD be a circle, of which the diameter is BC,... | |
| Mathematics - 1835 - 684 pages
...semi-circum•ference, that is, by a quadrant. Cor. -2. (Eue. iii. 31. second part of.) The angle, which is **in a segment greater than a semicircle, is less than a right angle ; and the angle,** which is in a segment less than a semicircle, is greater than a • From the Latin word цгайчии,... | |
| Euclid - 1835 - 540 pages
...AD, DC; the angle in the semicircle BAG is a right angle; and the angle in the segment ABC, which is **greater than a semicircle, is less than a right angle ; and the angle in** the segment ADC, which is less than a semicircle, is greater than a right angle. Join AE, and produce... | |
| Mathematics - 1836 - 366 pages
...right angles to the same plane. 3. In a circle the angle in a semicircle is a right angle, but 1829 **the angle in a segment greater than a semicircle is...less than a semicircle is greater than a right angle.** 4. If two triangles have the sides about equal angles reciprocally proportional, they are equal. 5.... | |
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