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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: PROBLEM SOLVED - 1 CRORE GIVEN..........
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[Post New]12 May 2007 19:07:18 IST
    Subject: PROBLEM SOLVED - 1 CRORE GIVEN..........
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fused_bulb (233)

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             TO PROVE :  OBTUSE ANGLE = 90 DEGREES .
                                                                     LET'S SEE..........................
 
U'LL WORK UR NUTS OFF TO SOLVE THIS ANOMALY BUT U  WOULDN'T BE ABLE TO.
 
 
Q. FIG IS AT BOTTOM
 
 
 
ABCD is a square. BE = BC ( E LIES ON A CIRCLE WITH B AS CENTRE AND BC AS RADIUS . THEREFORE , BE = BC = RADIUS OF CONSTRUCTED CIRCLE . )
PQ bisects CD,AB.
OR is perp.bisect. of DE.
PQ, RO intersect at O.
ANGLE ABE is an OBTUSE ANGLE. ( clearly )

TRNGLE ORD IS CONGRUENT TO TRIANGLE ORE (SAS)
:. OD = OE

TRIANGLE OQA IS CONGRUENT TO TRIANGLE OQB (SAS)
:. OA = OB & ANGLE OAB = ANGLE OBA.......................1
 
TRIANGLE  OAD CONGRUENT TO TRIANGLE  OBE (SSS)
:. ANGLE OAD = ANGLE OBE..............................2( OD = OE as or is perp. bisector of DE )
 
ANGLE ABE = ANGLE OBE - ANGLE OBA
= ANGLE OAD - ANGLE OAB..................................FROM 1 & 2

But ANGLE OAD - ANGLE OAB
= 90 °..............................CLEARLY

:. ANGLE ABE = 90 °
However, we've assumed the angle to be obtuse. :. Every obtuse angle is a right angle.

............tseb eht ma i
    
[Post New]12 May 2007 19:18:10 IST
    Subject: OBTUSE ANGLE = 90 DEGREES
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neeraj_agarwal_1990 (887)

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??
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[Post New]12 May 2007 19:42:54 IST
    Subject: OBTUSE ANGLE = 90 DEGREES
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fused_bulb (233)

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NOBODY HAS THE GUTS HERE.........
............tseb eht ma i
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[Post New]12 May 2007 19:59:42 IST
    Subject: OBTUSE ANGLE = 90 DEGREES
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fused_bulb (233)

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I AM  WAITING........................
............tseb eht ma i
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[Post New]12 May 2007 20:21:18 IST
    Subject: OBTUSE ANGLE = 90 DEGREES
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fused_bulb (233)

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IS EVERYBODY SCARED HERE OR WHAT ......................

HEY , PLZ. PROVE ME WRONG

ATLEAST WRITE SOMETHING.
............tseb eht ma i
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[Post New]12 May 2007 20:36:04 IST
    Subject: BILLION DOLLAR QUESTION
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fused_bulb (233)

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BYE..........
............tseb eht ma i
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[Post New]12 May 2007 20:57:23 IST
    Subject: BILLION DOLLAR QUESTION
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fused_bulb (233)

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STILL NO REPLIES.................
I AM GETTING FRUSTRATED
............tseb eht ma i
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[Post New]12 May 2007 21:42:10 IST
    Subject: HOW THE HELL IS IT POSSIBLE ????
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fused_bulb (233)

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DOES EVERYONE QUIT.....................
............tseb eht ma i
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[Post New]12 May 2007 22:05:25 IST
    Subject: THIS IS DANGEROUS..............
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fused_bulb (233)

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OK , I WILL REVEAL THE ANS . IN 20 MINS.
............tseb eht ma i
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[Post New]12 May 2007 22:32:29 IST
    Subject: I BET 1 CRORE U CAN'T DO THIS
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fused_bulb (233)

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I HAVE HEARD GENIUS PEOPLE COME ONLINE LATE IN THE NIGHT

SO OK ONE MORE HOUR...........
............tseb eht ma i
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[Post New]12 May 2007 22:51:03 IST
    Subject: Re:I BET 1 CRORE U CAN'T DO THIS
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thevyzz (332)

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mistake in ur second assesment



TRIANGLE OAD CONGRUENT TO TRIANGLE OBE (SSS)

:. ANGLE OAD = ANGLE OBE..............................2

 


incorrect as OD = OC and not OD = OE

so the next steps too are bound to be wrong
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[Post New]12 May 2007 23:06:15 IST
    Subject: I BET 1 CRORE U CAN'T DO THIS
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fused_bulb (233)

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THEVYZZ

DO U KNOW THE MEANING OF PERPENDICULAR BISECTOR.................

5TH GRADE STUDENTS ARE NOT INVITED.
............tseb eht ma i
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[Post New]12 May 2007 23:28:25 IST
    Subject: Re:I BET 1 CRORE U CAN'T DO THIS
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prasad_aspirant (235)

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hahaahah a
ur silly question made me laugh like anything
it is a solved question of dasgupta
every student in AP will do it even while dreaming
n u bet no one can do it???????
may be u should adopt some books made in africa or some unknown planets and type the questions. then no one will be able to do it.
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[Post New]12 May 2007 23:44:15 IST
    Subject: Re:I BET 1 CRORE U CAN'T DO THIS
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karthik_abiram (1222)

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u didnt giv the postion of "E".........
 
so there exists a possibility that E lies on C itself-------so it becomz 90 degree..........
 
 
 
IF U THINK U CAN, U CAN........IF U THINK U CAN'T, U CAN'T.........

BE THE BEST OF WHAT EVER YOU ARE!!!

THEN U WILL SUCCEED FOR SURE!!!



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[Post New]12 May 2007 23:48:37 IST
    Subject: I BET 1 CRORE U CAN'T DO THIS
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fused_bulb (233)

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