SOLUTION: Prove that the tangents passing through the end points of a diameter of a circle are parallel to each other.

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Question 1067851: Prove that the tangents passing through the end points of a diameter of a circle are parallel to each other.
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.
HINT: These tangents are perpendicular to the diameter.

See the lesson
    - A tangent line to a circle is perpendicular to the radius drawn to the tangent point
in this site.

Also,  you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lesson is the part if this textbook under the topic
"Properties of circles, inscribed angles, chords, secants and tangents".