Answers

2014-09-16T12:28:50+05:30
IN THE TRIANGLE AD IS ALTITUDE .
AD²+DB²=AB²
⇒AD²+(1/2 * BC)²=AB²
⇒AD²+BC²/4=AB²
⇒4AD²+BC²=4AB²
⇒4AD²=4AB²-BC²
⇒4AD²=4AB²-AB²
⇒4AD²=3AB²
⇒AD²=3/4*AB²
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2014-09-16T14:49:50+05:30
See the attachment for right proof.
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