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anonymous

  • one year ago

Calculate the area of triangle ABC with altitude CD given A (6, -2), B (1,3), C (5,5), and D (2,2)

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  1. anonymous
    • one year ago
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    12 square units 13 square units 14 square units 15 square units

  2. anonymous
    • one year ago
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    @coolman500 @kidrah69 @Demonx341 @Data_LG2 @freckles

  3. anonymous
    • one year ago
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    Based on my calculations I though it was 13 units

  4. anonymous
    • one year ago
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    thought not though

  5. anonymous
    • one year ago
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    Formula for the area of a triangle is 1/2bh. Do you have any diagrams for this? IF not then I'll assum it will look like this:|dw:1433175385799:dw| First thing you have to do is find the length of of the base, which is the length of AB Then find the height/altitude, which is the length of CD Calculate the lengths using the distance formula. Then after you find the value, apply the the formula for the area. Give me a sec. I'll try to solve it also and I'll tell you if we get the same thing.

  6. anonymous
    • one year ago
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    OK thanks. I just keep getting the same result...

  7. anonymous
    • one year ago
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    I get a different answer. hmm.. can you tell me what did you get for the length of AB?

  8. anonymous
    • one year ago
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    I just calculated the triangle and multiplied the volume against the length of it and I keep getting the same result.@Data_LG2

  9. anonymous
    • one year ago
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    @Data_LG2 I suck at math AND I AM SHERLOCK HOLMES FOR CRYING OUT LOUD

  10. anonymous
    • one year ago
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    i REALLY WISH SOMEONE WOULD ANSWER! I feel like I am in the math-twilight zone :(:::::

  11. anonymous
    • one year ago
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    sorry late response.. do you know the distance formula?

  12. anonymous
    • one year ago
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    Sort of...

  13. anonymous
    • one year ago
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    |dw:1433176061208:dw|

  14. anonymous
    • one year ago
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    The only thing i know abou the distance formula that it is derived from the Pythagorean theorem. And to find the distance between two points (x1,y1) and (x2,y2), all that you need to do is use the ...

  15. anonymous
    • one year ago
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    yes, that is right. We have to apply it though. It is better if we do this step by step :)

  16. anonymous
    • one year ago
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    Can you walk me through it... :(

  17. anonymous
    • one year ago
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    |dw:1433176185824:dw| what will you get when you evaluate this?

  18. anonymous
    • one year ago
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    Sorry I don't lmpw

  19. anonymous
    • one year ago
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    know

  20. anonymous
    • one year ago
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    alright :) what is 1-6?

  21. anonymous
    • one year ago
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    I am -5????

  22. anonymous
    • one year ago
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    yes, let's put that in|dw:1433176404671:dw| now what is 3-(-2) ?

  23. anonymous
    • one year ago
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    1?

  24. anonymous
    • one year ago
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    negative times a negative will be positive, so it will be 3+2, now what is 3+2?

  25. anonymous
    • one year ago
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    Sorry I forgot.. :(::::

  26. anonymous
    • one year ago
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    5

  27. anonymous
    • one year ago
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    yes, now we'll put that in|dw:1433176628395:dw| now what is -5 x -5 ?

  28. anonymous
    • one year ago
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    um 25?

  29. anonymous
    • one year ago
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    yes. |dw:1433176810532:dw| next what is 25+25?

  30. anonymous
    • one year ago
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    duh 50

  31. anonymous
    • one year ago
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    k good, what is the sqrt of 50?

  32. anonymous
    • one year ago
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    I think its 7.1

  33. anonymous
    • one year ago
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    But the full answer is 7.07106781187

  34. anonymous
    • one year ago
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    alright, that will be the base. next do the whole thing again but with the length of CD :)

  35. anonymous
    • one year ago
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    Give me a second

  36. anonymous
    • one year ago
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    OK. I am going with 15 units it sounds right.

  37. anonymous
    • one year ago
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    can you tell me how'd you get that?

  38. anonymous
    • one year ago
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    I did the whole thing and thats what I got.

  39. anonymous
    • one year ago
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    I did it except witht he length of CD :)

  40. anonymous
    • one year ago
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    ok?

  41. anonymous
    • one year ago
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    dO You think its right. ? @Data_LG2

  42. anonymous
    • one year ago
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    yes, it is right. But I just hope you understand how to get that answer :)

  43. anonymous
    • one year ago
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    @Data_LG2 Thanks I learned a lot

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