Question

The sides of a triangle are 3x+1, 4x+2 and 5x. Find the perimeter of the triangle.​

Answer 1

Answer:

12x + 3

Step-by-step explanation:

$p \: of \: triangle = s1 + s2 + s3$

$so \: p = 3x + 1 + 4x + 2 + 5x$

$hence \: \: p = 12x + 3$

Answer 2

Answer         =3x+1+4x+2+5x

=12x+3

12x=3

x=3÷12

x=0.5

3x+1=3×0.5+1=2.5

4x+2=4×0.5+2=4

5x=5×0.5=2.5

perimeter of triangle= 2.5+4+2.5

=9squnit