in an equilateral triangle ABC, D is a point on side Bc, such that BD = 1/3BC.prove that 9ADsquare = 7ABsquare
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Here is ur step by step explanation
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Anonymous:
but BP?
you are so intelligent
there is no BP
how to memorise this answer
first using pythagoras theorem ...find AD sq and AB sq and then subtract the first equation from the second one
first using pythagoras theorem ...find AD sq and AB sq and then subtract the first equation from the second one
Before begining write BE ,BD and BC in terms of BC
Ok thank you very much
ur welcome
can u pl mark it as brainliest if it was helpful
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