the perimeter of a triangular plot is 240.If 2 of its sides are 78m and 50m,find the length of a perpendicular on the side of length 50m from the opposite vertex.
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First find the third side
78+50+x=240
x=240-128
=112
we know the median divides the side into 2 equal halves so let BD be altitude on AC=50
.: DC =25
Now in tri angle BDC
112 + 25+BD=120
BD= 120
78+50+x=240
x=240-128
=112
we know the median divides the side into 2 equal halves so let BD be altitude on AC=50
.: DC =25
Now in tri angle BDC
112 + 25+BD=120
BD= 120
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