Question

two equal sides of a triangle are each 5 meters less than twice the third side if the perimeter of the triangle is 55 meters , find its length and breadth

Answer 1

let third side is x and two equal side y
y= 2x-5
According to the question
x+y+y=55
x+ 2x-5+2x-5 = 55
5x -10 = 55
5x = 55+10
5x = 65
x= 13
and y = 2x -5
26-5= 21
hence two equal sides are 21 m and third side is 13 m.