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CBSE Class 9 Answered

please answer this question regarding area of triangle
Asked by sahiljain | 02 Jun, 2008, 07:10: AM
answered-by-expert Expert Answer

here we have given c=AB=13 , a=BC=15 and length of median on AC= 7 = length of BD and let AC=b

BD2= 1/4 ( 2c2+2a2-b2)

by this formula we can calculate b since a and c are given.

then find triangle area using formula A= s(s-a)(s-b)(s-c)

where s= (a+b+c)/2

Answered by | 08 Sep, 2008, 06:58: PM

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