 | Webster Wells - Geometry - 1886 - 392 pages
...PROPOSITION XVI. THEOREM. 184. The two tangents to a circumference from an outside point are equal. Let AB and AC be the tangents from the point A to the circumference whose centre is at O. To prove that AB = AC. Join OA, and draw the radii OB and OC. Since... | |
 | James Howard Gore - Geometry - 1898 - 232 pages
...PROPOSITION VII. THEOREM. 159. The two tangents to a circumference from an outside point are equal. C Let AB and AC be the tangents from the point A to the circumference whose centre is at O. To prove that AB = AC. Draw the radii OB and OC and join AO. In... | |
 | American School (Chicago, Ill.) - Engineering - 1903 - 390 pages
...perpendicular to A B. THEOREM XLIV. 162. The two tangents to a circumference from an outside point are equal. Let AB and AC be the tangents from the point A to the circumference whose centre is O. To prove that AB = A C. Join OA, and draw the radii OB and O C. Since... | |
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The two tangents to a circumference from an outside point are equal. Let AB and AC be the tangents from the point A to the circumference whose centre is at O. To prove that AB = AC. 