Question 121596: Given the points: A (1,1) B (8,12) and C (12,3).
1. Find the perimeter of Triangle ABC. (Using the distance formula).
2. Find the equation of line AB.
3. Find the equation of altitude CD.
4. Find the intersection of line AB and line CD, this is point D (__,__).
5. Find the length of line segment AB (using distance formula).
6. Find the length of line segment CD (using distance formula).
7. Find the area of triangle ABC.
Please help with solving these problems. I am trying to help my daughter and I understand algebra, but not these problems. Thank you very much. I need to see the work, so I can explain to her.
Answer by algebrapro18(249)   (Show Source):
You can put this solution on YOUR website! First off I want to say that I am really sorry this took me so long to respond to. Secondly I would like to say that this is way to much for me to do here but if you would give me your e-mail address I would certainly be glad to type out the work in ms word and send it to you with detailed explinations.
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