Answers

2014-12-06T20:16:33+05:30
As per Question we have angle P is 90 degree
AB²=AP² + PB²=64=36=100
⇒ AB=10cm
Let BN = X cm
From triangle APN we have PN² = AP² - AN²
From triangle PNX we have PN² = PB² - X²
we have PB² - X² = AP² - AN²
                   ⇒  6² - X² = 8² - (10-X)²
                   ⇒   36 - X² = 64-100-X² + 20X
                   ⇒    20 X =  72
                               X = 3.6
  length of BN =3.6


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