Co-ordinate Geometry - FIITJEE QUESTION

1

gsns gannavarapu ·2009-04-03 09:57:43

hey is d ans 28 sq units??

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33

Abhishek Priyam ·2009-04-03 09:59:25

i got 84

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39

Dr.House ·2009-04-03 10:00:00

its 84. u r right priyam.

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39

Dr.House ·2009-04-03 10:01:47

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33

Abhishek Priyam ·2009-04-03 10:03:59

area of triangle = 1/2[(2x-1)4+2x.4+(2x+1).4]

also area of triangle= √s(s-a)(s-b)(s-c)

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1

gsns gannavarapu ·2009-04-03 10:04:26

ohhhhhhhh.....4got multiplyin by 3.....:(

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1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-03 10:07:11

shit
i tried by a long method,....................... :(
4gt this chap :P

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1

gsns gannavarapu ·2009-04-03 10:08:27

yaaaa went rong in d last step.......

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1

dinks007 ·2009-04-03 21:08:47

84 is correct!!!

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1

brinda laxmi ·2009-04-04 03:11:52

arre but how is CD=x, AE=x+1, BF=x-1 plz i didnot understand

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1

brinda laxmi ·2009-04-04 03:31:04

plz reply

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1

vector ·2009-04-04 03:34:24

it s given that common diff is 1

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39

Dr.House ·2009-04-04 04:16:51

@brinda: they are in AP its given in the question.

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1

brinda laxmi ·2009-04-04 10:36:44

its given dat BD ,CE ,AF R IN AP n nothing said about CD, AE,BF den how can u consider

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1

vector ·2009-04-04 10:38:18

try to prove triangles to be congruent

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gsns gannavarapu ·2009-04-04 10:41:10

rem theorem in 10th......2 tangents drawn 4rm same point 2 d circle r equal in lenght.......

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