 | Robert Simson - 1806 - 546 pagine
...the point A, that is, it must pass through it. Therefore, if two circles, &c. QED PROP. XII. THEOR. IF two circles touch each other externally, the straight...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 Playfair - 1806 - 320 pagine
...the point A ; that is, it must pass through A. Therefore, if two circles, &c. QED PROP. XII. THEOR. IF two circles touch each other externally, the straight line which joins their centres will pass through the point of contact. Let the two circles ABC, ADE touch each other externally in... | |
 | John Mason Good - 1813 - 714 pagine
...which joins their centres being produced shall pass through the point of contact. Prop. XII. Theor. If two circles touch each other externally, the straight...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 pagine
...the point A, that is, it must pass through it. Therefore, if two circles, &c. QED PROP. XII. THEOR. IF two circles touch each other externally, the straight...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... | |
 | Euclid, Robert Simson - 1821 - 514 pagine
...must pass through it. There- ' fore, if two circles, &c. Q. E_. D. • / PROP. XII. THEOR. - *n IP two circles touch each other externally, the straight...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... | |
 | Peter Nicholson - 1825 - 1046 pagine
...point A, that is, it must pass through it Therefore, if two circles, &c. QED Proposition XII. Theorem. If two circles touch each other externally, the straight...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 pagine
...A, that is, it must pass through it. Therefore, if two circles, &c. QED « 20. 1. PROP. XII. THEOR. If two circles touch each other externally, the straight...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... | |
 | John Playfair - 1832 - 358 pagine
...the point A ; that is, it must pass through A. Therefore, if two circles, &c. (JED PROP. XII. THEOR. If two circles touch each other externally, the straight line which joins their centres will pass through the point of contact. Let the two circles ABC, ADE, touch each other externally in... | |
 | Thomas Perronet Thompson - 1833 - 168 pagine
...the distance between the extremities of the proposed radius. COR. 7- If two spheres touch one another externally, the straight line which joins their 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.... | |
 | Euclides - 1834 - 518 pagine
...A, that is, it must pass through it. Therefore, if two circles, &c. QED PROPOSITION XII. THEOR. — If two circles touch each other externally, the straight line which joins their centres, shall pass throvgh the point of contact. in the point A ; and let F be the centre of the circle ABC, and G the... | |
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IF two circles touch each other externally, the straight line which joins their centres shall pass through the point of contact. 
