# SOLUTION: Can someone help me with this I don't understand proofs at all. Here is the link to what I do not understand. Can you explain how to do this right! http://www.flickr.com/photos/6

Algebra ->  Algebra  -> Geometry-proofs -> SOLUTION: Can someone help me with this I don't understand proofs at all. Here is the link to what I do not understand. Can you explain how to do this right! http://www.flickr.com/photos/6      Log On

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 Geometry: Proofs in Geometry Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Geometry proofs Question 526246: Can someone help me with this I don't understand proofs at all. Here is the link to what I do not understand. Can you explain how to do this right! http://www.flickr.com/photos/68627030@N06/6312732786/ Answer by richard1234(5390)   (Show Source): You can put this solution on YOUR website!Since angle 1 and angle 2 are equal, name each angle "x." The sum of angle 1 and angle 2 is 2x, which is equal to 180 degrees (since BD is a straight line). Hence 2x = 180, x = 90, so the angles are right angles. This implies that AC and BD are perpendicular. Use this to write out your proof.