Question

The square has the same perimeter as the triangle.

Answer 1

I think that the perimeter of the square would be B.

Steps are:

1.) Add the 3 sides of the triangle (36) 
2.) Divide the answer by 3 (9) that is the perimeter of the triangle
3.) Multiply the answer by how many sides the square has (which is 4)
4.) 9 times 4 is 36
5.) So the answer is option B. (9)


Hope this helps!! :-)

Answer 2

The perimeter of the triangle =  15+12+9 = 36 m
Therefore the side of the square must be 9 m  longer because 4 * 9 = 36

Answer is B