Question

two equal sides of a triangle are each 5 metres less than twice the third side if the perimeter of the triangle is 55 metres find the length of its sides​

Answer 1

Answer:

Step-by-step explanation:

Let's the third side=x

Two equal sides of a triangle are each 5 metres less than twice the third side=2x-5

Sum of the three sides of the triangle =perimeter of the triangle

2x-5+2x-5+x=55

5x-10=55

5x-10=55

5x=55+10

5x=65

x=65/5=13

x=13

2x-5=2×13-5=26-5=21

2x-5=2×13-5=26-5=21

x=13

21+21+13=55

55=55