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The triangle ABC,right-angled at C,has median AD.BE and CF. AD lies along the line y=x+3,BE lies along the line y=2x+4. If the length of of the hypotenuse is 60 find the area of the triangle ABC.

atharv dixit , 11 Years ago
Grade 12
anser 1 Answers
ashutosh kataria
The easiest way to solve this question is by shifting the centroid to origin.
Thus now equations of median are y=x and y=2x.
Now the coordiantes of A can be taken as (a,a) and that of B can be taken as (b,2b) 
Using centroid formula C(-a-b,-a,-2b)
Equate hypotenuse length equal to 60 get one equation. Second equation comes from slope of AC and BC product is -1.Solving both the equations you will get ab=(-800/3).
Find out area of triangle using all three co-ordinates. Area=3/2 (ab)
=400
 
Last Activity: 8 Years ago
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