H
E
E
L
E
M
E
N
T
S
I say that the center of the circle is on AC.
|
T H E E L E M E N T S |
Book III Proposition 19 | |
|
For let a straight line DE touch the circle ABC
at the point C, and from C let CA be
drawn at right angles to DE; I say that the center of the circle is on AC. |
|
|
| Return to Propositions Next Page | ||