Question

find the perimeter of triangle with the given sides.
(a) 3x + 4x, 3x - 4 and x - 3x
(b) 3x + 7x. 3x - 4 and x-6x ..​

Answer 1

Step-by-step explanation:

perimeter of the triangle =sum of all sides

=3x+4x+3x-4+x-3x+3x+7x+3x-4+x-6x

=25x-9x-8

=16x-8

Answer 2

Answer:

$8x-4$ both triangles have the same perimeter

Step-by-step explanation:

As we know that the perimeter of the triangle= sum of all the sides

Here also we would add all the sides as like terms are added with like and unlike terms are added with unlike terms

So for 1st triangle, we have given points $3x+4x,3x-4,x-3x$

So the sum of all the points would be and the perimeter would be

$3x+4x+3x-4+x-3x=8x-4$

Now the perimeter of the 2nd triangle would be

$3x+7x+3x-4+x-6x=8x-4$

Hence the perimeter of both the triangles is the same and they might be a similar triangle