Math Questions!

• Chockeh wrote on 2011-01-18 04:29
  This time, I got some math questions!
  
  

  [Image: http://i472.photobucket.com/albums/rr82/kev_619_29/Math1.jpg]

  
  
  Since the segments AB and DC are parallel, I was able to find out that the ''The minimum similarity AA is respected'' (Don't know the English term for it). Now I have to find out what the perimeter is, but I'm having trouble filling in the blanks... And I'll probably have more trouble putting them all together...
  EDIT: Oops! Segment EC is not X^2 = 3x = 2/x... Its x^2 + 3x + 2 / x!
  And segment AE is x + 2 cm
  
  

  [Image: http://i472.photobucket.com/albums/rr82/kev_619_29/Math2.jpg]

  
  
  Demonstrate that, in a isosceles triangle, the segment connecting the middle of the hypotenuse between the top divides the original into two isometric triangles.
  
  Not sure what I should do here... Probably prove that the ACD and BCD triangles are isometric? Somehow...
  
  *Sorry if my terms is wrong since I study in a different language. Please feel free to correct me!
  
  EDIT: 3rd question!
  
  

  [Image: http://i472.photobucket.com/albums/rr82/kev_619_29/Math3.jpg]

  
  I have to determine the area of the blue triangles.
  Found that segment AB is 5cm and that the segment ED is 5.59 cm.
  EDIT: Answer I got is 31.25 cm^2, don't know if I'm right or wrong.
  Of course, I'm not here being lazy! I'm also doing what I can and doing the numbers I can do without any help! Doing the 3rd one right now since I can see the path to victory!
• Tokiko wrote on 2011-01-18 04:44
  [video=youtube;sbFHYrlocoA]http://www.youtube.com/watch?v=sbFHYrlocoA[/video]
• Chockeh wrote on 2011-01-18 04:46
  You're useless son.
• Phunkie wrote on 2011-01-18 05:46
  Unless you're planning on contributing to a discussion, please don't post nonsenses in a thread.
• Chockeh wrote on 2011-01-18 06:01
  So I found the answer to the last questions...
  First 2 has be stumped though...
  
  First one:
  Since AE / EC = BE / ED
  Would it make something like (x + 2) X (x^2 + 3x + 2 / x) / (x^2 - 1 / x) to find BE? And I also have to magically find what's DC and add them all up T_T.