Question

the perimeter of a triangle is 8x+9 and two sides are 3x+1 and 2x+1 . find the third side

Answer 1

c=p-a+b=(8x+9)-(3x+1)+(2x+1)=7x+9

Answer 2

Answer:

Find the third side

the third side is 3x +7

solution:-

perimeter of the triangle = (8x+9)

(3x+1)+(2x+1)+ third side = (8x+9). [perimeter= sum of 3 sides]

(5x+2)+ Third side = (8x+9)

third side = (8x+9)-(5x+2)

Third side = 8x + 9 - 5x - 2 = 3x + 7

✅ Hence the third side of the triangle is

3x + 7