 IF two circles touch each other externally, the straight line which joins their centres shall pass through the point of contact.  Annual Report - Seite 77von Canada. Topographical and Air Survey Bureau - 1908Vollansicht - Über dieses Buch
 | Robert Simson - 1806 - 546 Seiten
...pass through it. Therefore, if two circles, &c. QED PROP. XII. THEOR. IF two circles touch each other externally, the straight line which joins their centres shall pass through the point of contact. Let the two circles ABC, ADE touch each other externally in the point A ; and let F be the centre of... | |
 | John Mason Good - 1813 - 714 Seiten
...produced shall pass through the point of contact. Prop. XII. Theor. If two circles touch each other externally, the straight line which joins their centres shall pass through the point of contact. Prop. XIII. Theor. One circle cannot touch another in more points than one, whether it louches it on... | |
 | Euclides - 1816 - 588 Seiten
...pass through it. Therefore, if two circles, &c. QED PROP. XII. THEOR. IF two circles touch each other externally, the straight line which joins their centres, shall pass through the point of contact. Let the two circles ABC, ADE, touch each other.externally in the point A ; and let F be the centre... | |
 | Peter Nicholson - 1825 - 1046 Seiten
...through it Therefore, if two circles, &c. QED Proposition XII. Theorem. If two circles touch each other externally, the straight line which joins their centres, shall pass through the point of contact Let the two circles ABC ADE touch each other externally in the point A ; and let F be the centre of... | |
 | Robert Simson - 1827 - 546 Seiten
...it. Therefore, if two circles, &c. QED « 20. 1. PROP. XII. THEOR. If two circles touch each other externally, the straight line which joins their centres, shall pass through the point of contact. Let the two circles ABC, ADE, touch each other externally in the point A ; and let F be the centre... | |
 | Thomas Perronet Thompson - 1833 - 168 Seiten
...distance equal to the distance between the extremities of the proposed radius. COR. 7- If two spheres touch one another externally, the straight line which...centres shall pass through the point , of contact. For it is one of the points through which the straight line tlNTERc.10. described as by Prop. IX, passes.... | |
 | Andrew Bell - 1837 - 290 Seiten
...point A ; that is, it must pass through A. "PROPOSITION XII. THEOREM. If two circles ^touch each other externally, the straight line which joins their centres shall pass through the point of contact. Let the two circles ABC, ADE, touch each other externally in the point A ; and let F be the centre... | |
 | Euclides - 1837 - 112 Seiten
...must pass through A. PROPOSITION XII. (Argument ad absurdum). Theorem. If two circles touch each other externally, the straight line which joins their centres shall pass through the | ..-."I--.. IE point of contact. Prove that the supposition, that the line joining the centres passes... | |
 | Euclides - 1838 - 264 Seiten
...pass through it. Therefore, if two circles, &c. QED PROP. XII. THEOR. If two circles touch each other externally, the straight line which joins their centres shall pass through the point of contact. Let the two circles ABC, ADE, touch each other externally in the point A ; and let F be the centre... | |
 | Euclides - 1842 - 316 Seiten
...pass through it. Therefore, if two circles, &c. QED PROP. XII. THEOR. IF two circles touch each other externally, the straight line which joins their centres shall pass through the point of contact. Let the two circles ABC, ADE touch each other externally in the point A ; and let F be the centre of... | |
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