Math, asked by manasiriya2003, 1 year ago

Ques 6 fasttt....help me I have my exam......plzzz class 10 maths

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manasiriya2003: Plzzz help me fast send correct answer

Answers

Answered by Ayushibilwadia
0
We know that if AD is a meadian of triangle ABC , then AB²+AC²=2AD²+1\2BC²

Since the diagonals of a parallelogram bisect each other, therefore , BO and DO are meadian ofABC and ADC respectively.

AB²+BC²=2BO²+1\2AC² eq1

and

AD²+CD²=2DO²+1\2AC² eq2
NOW ADD Equation 1 and 2 we will get

=AB²+BC²+CD²+AD²=2(BO²+DO²)+AC²

=AB²+BC²+CD²+AD²=2(1\4BD²+1\4BD²)

=AD²+BC²+CD²+AD²=AC²+BD²

Hope it will help u
Thank u

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Ayushibilwadia: hi
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Answered by malayali24
0
Here is your answer.
Hope it helps you
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malayali24: set 1 had 2 quite difficult questions
Ayushibilwadia: i got set 2
malayali24: Mm
manasiriya2003: No not that much easy but it was good
manasiriya2003: So u from where ??
manasiriya2003: I m from cbse
manasiriya2003: Board
malayali24: l am also cbse
malayali24: l am from kerala
manasiriya2003: Ok i m from UK
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