Question

Length of equal side of a triangle is 4m less from the third side.If the perimeter of triangle is 55m.Find the dimensions of the tiangle.

Answer 1

let the third side be x m

so , other two equal sides =(x-4)m

and,the perimeter of the triangle is 55m

A/q

x+(x-4)+(x-4)=55

x+x-4+x-4=55

3x-8=55

3x=63

x=21

Hence, the sides are 21m,17m,17m.

please mark it best answer!

Answer 2

Answer:

Given,

equal side of a triangle is 4 less than the third side

let side A and B =x

therefore,third side =4+x

now,sum of all sides =perimetre

threfore,x+x+4+x=55

3x+4=55

3x=55-4

x=51÷3

x=17m

and third side =x+4

17+4=21m