CBSE Class 10 Answered
A triangles question.
Asked by priyadarshini_selvam | 18 Feb, 2010, 11:27: AM
Expert Answer
In 
ADC,
AC2 = AD2 + DC2 ............Pythagorus's Theorem,
AC2 = AD2 + (BD+BC)2
AC2 = AD2 + BD2 + BC2 + 2BD BC
AC2 = (AD2 + BD2) + BC2 + 2BD BC ...............(1)
Also in ADB,
AB2 = BD2 + AD2 .............Using this result in (1)
AC2 = AB2 + BC2 + 2BD BC
Regards,
Team,
TopperLearning.
Answered by | 18 Feb, 2010, 11:40: AM
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