| I. Hammond Morris - 1890 - 260 Seiten
...the point of contact is perpendicular to the line touching the circle.' Also the converse of this. ' **If a straight line touch a circle, and from the point of contact a straight line be drawn** at right angles to the touching line, the centre of the circle shall be in that line.' (Eue. in. 18... | |
| Edward Mann Langley, W. Seys Phillips - 1890 - 515 Seiten
...chord of a circle of given length malting a given angle with a given st. line. PROPOSITION 19. THEOREM. **If a straight line touch a circle, and from the point of contact a straight line be drawn** at right angles to the touching line, the centre of the circle shall be in that line. Let DE be a tangent... | |
| Euclid - 1890 - 400 Seiten
...As, v ABQP is a cyclic quad. A And it has been shown that PAB < rt. A . Proposition 32. THEOREM — **If a straight line touch a circle, and from the point of contact a straight line** is drawn dividing the circle into two segments, the angles made by this line with tlie tangent are... | |
| Queensland. Department of Public Instruction - 1890
...and enunciation of tlioae propositions of Euc. Bk. III., in which this definition is made use of. 3. **If a straight line touch a circle, and from the point of contact a straight line** lie drawn cutting the circle, the angles which this line makes with the line touching the circle shall... | |
| 1891
...opposite angle and the vertex of the obtuse angle. 7. The angle in a semi-circle is a right angle. **8. If a straight line touch a circle, and from the...be drawn cutting the circle, the angles which this** line makes with the line touching the circle shall be equal to the angles which are in the alternate... | |
| 1891
...whether that angle be right, obtuse, or acute. (6) Prove the case in which the angle is obtuse. 3. (a) **If a straight line touch a circle, and from the point...straight line be drawn cutting the circle, the angles** made by this line with the line touching the circle must be equal to the angles which are in the alternate... | |
| Queensland. Department of Public Instruction - 1892
...straight line which joins their centres, being produced, shall pass through tho point of contact. 3. **If a straight line touch a circle, and from the point of** 8 contact a chord be drawn, the angles which this chord makes with the tangent shall be equal to the... | |
| New Brunswick. Board of Education, New Brunswick. Department of Education - 1893
...whether that angle be right, obtuse, or acute. (b) Prove the case in which the angle is obtuse. 3. (a) **If a straight line touch a circle, and from the point...straight line be drawn cutting the circle, the angles** made by this line with the line touching the circle must be equal to the angles which are in the alternate... | |
| New Brunswick. Department of Education - 1893
...whether that angle be right, obtuse, or acute. (6) Prove the case in which the angle is obtuse. 3. (a) **If a straight line touch a circle, and from the point...straight line be drawn cutting the circle, the angles** made by this line with the line touching the circle must be equal to the angles which are in the alternate... | |
| 1895
...sonst, soi.dern faltig an dem kräftigen Bein. PUEE MATHEMATICS.— PABT I. The Board of Examiners. 1. **If a straight line touch a circle, and from the point of contact a** chord be drawn, the angles which this chord makes with the tangent shall be equal to the nng-les in... | |
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