anonymous
  • anonymous
B is the midpoint of AC, D is the midpoint of CE, and AE=21. find BD
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
|dw:1332903836053:dw|
anonymous
  • anonymous
does 21/2 make sense?

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anonymous
  • anonymous
no:( , can you explain please ?
anonymous
  • anonymous
oh Really i thought the question is about similarity bet. 2 Triangles O_o
anonymous
  • anonymous
|dw:1332904066126:dw|
anonymous
  • anonymous
oh wow, i thought it was about a line..
anonymous
  • anonymous
well, the whole thing is 21. so half is : x+ (21-x).. one side will have a certain amount and the other will be the remainder
anonymous
  • anonymous
Same answer as @liliy put at first it's 21/2
anonymous
  • anonymous
so one is the length of a-c and the other c-e. now we have a further division of b. and d. which are both halves of what we have. : so its x/2 x/2 for the length of a-b and b-c and 21-x/2 21-x/2 for c-d d-e. then add b-c and c-d.
anonymous
  • anonymous
yyyaaa!!!
anonymous
  • anonymous
use the formula of similarity bet. 2 triangles if triangle BCD is similar to triangle ACE therefore bc/ac =cd/ce=bd/ae=1/2 since AE=21 therefore BD=0.5X21=10.5
anonymous
  • anonymous
so the answer is 10.5 ?
anonymous
  • anonymous
which is also 21/2
anonymous
  • anonymous
:D if the math i hav taken in the school Remain as it is so the answer is yes :D
anonymous
  • anonymous
ok thankss:)

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