Question

if the perimeter of a triangle is 9 cm and its two sides are 11 upon 4 cm and 19 upon 5 cm ,then find the length of its third side.​

Answer 1

Answer:

Third side of a triangle = 405/226

Step-by-step explanation:

Perimeter of triangle=9cm

1st side of a triangle=11/4cm

2nd side of a triangle=19/5cm

Let 3rd side be x

ATQ,

Sum of all sides of triangle = Perimeter of triangle

11/9+19/5+x = 9

55+171/45+x = 9

226/45+x = 9

x = 9×45/226

x = 405/226

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