| Euclid - 1781 - 550 pages
...right angle ; and the angle in a fegment lefs than a femicircle is greater than a right angle. Let ABCD **be a circle, of which the diameter is BC, and centre E** ; and draw CA dividing the circle into the fegments ABC, ADC, and join BA, AD, DC ; the angle in the... | |
| John Playfair - Trigonometry - 1795 - 444 pages
...right angle ; and the angle in a fegment lefs than a femicircle is greater than a right angle. Let ABCD **be a circle, of which the diameter is BC, and centre E** ; arid draw CA dividing the circle into the fegments ABC, ADC, and join BA, AD, DC; the angle in the... | |
| John Playfair - Euclid's Elements - 1804 - 470 pages
...in a fegment lefs than a femicircle is greater than a right angle. to EBA ; al£o, becaufe Let ABCD **be a circle, of which the diameter is BC, and centre E ; draw CA dividing the circle into the** fegments ABC, ADC, and join BA, AD, DC ; the angle in the femicircle BAC is a right angle ; and the... | |
| Robert Gibson - Surveying - 1806 - 452 pages
...angle ADB is less than half a semicircle, and consequently less than a right angle, fig. 26. Cor. 4. An **angle in a segment less than a semicircle, is greater than a right angle,** for since the arc AEC is greater than a semicircle, its half, which is the measure of the angle ABC,... | |
| Robert Simson - Trigonometry - 1806 - 518 pages
...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** : wherefore, if the given triangle be acute angled, the centre of the circle falls within it ; if it... | |
| Robert Gibson - 1808 - 440 pages
...angle ADB is less than half a semicircle, and consequently less than a right angle, fig. 26. Cor. 4. An **angle in a segment less than a semicircle, is greater than a right angle,** for since the arc AEC is greater than a semicircle, 'its half, which is the measure of the angle ABC,... | |
| Robert Gibson - Surveying - 1811 - 592 pages
...angle ADB is less than half a semicircle, and consequently less than a right angle. Fig. sr. Cor. 4 An **angle in a segment less than a semicircle, is greater than a right angle,** for since the arc AEC is greater than a semicircle, its half, which is the measure of the angle ABC,... | |
| John Mason Good - 1813 - 722 pages
...in a semicircle is a right angle; but 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.** Prop. XXXII. Theor. If a straight line touches я circle, an J from the point of contact a straight... | |
| Robert Gibson - Electronic books - 1814 - 508 pages
...angle ADBis less than half a semicircle, and consequently less than a right angle. Fig. У!. Cor. 4. An **angle in a segment less than a semicircle, is greater than a right angle,** for since the arc AEC is greater than a semicircle, its half, which is the measure of the angle ABC,... | |
| Euclides - 1816 - 528 pages
...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** : Wherefore, if the given triangle be acute angled, the centre of the circle falls within it ; if it... | |
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