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The perimeter of a triangle park is 240 m if 2 of its sides are 78 m and 50 m, find the length of the perpendicular on the side of length of 50 m from the

opposite vertex


Perimeter of triangular park = 240m
length of two side are- 1) 78m
                                 2) 50m
let 3rd side be          = x meter

78+50+x = perimeter of triangle
78+50+x = 240m
128+x     = 240m
x             = 240-128
x             = 112m
therefore, the length of third side is 112m . 
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