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# DS Geometry Help

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Senior Manager
Joined: 02 May 2004
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14 Jul 2006, 17:18
00:00

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions

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Senior Manager
Joined: 07 Jul 2005
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Location: Sunnyvale, CA
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14 Jul 2006, 18:08
(B)

Use the property, ext. angle = sum of interior opp. angles.
you will get
angle PRT = QPR
which means lines are ||
14 Jul 2006, 18:08
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