Question

I need someone to explain me quickly.

If triangle KLM is congruent to NOP,find the perimeter.

Answer 1

Answer:

Finding x FIRST:

2x-9 = x+5

1x-9 = 5

1x = 14

x = 14

Perimeter = Add all sides

Perimeter of KLM = 15+(2x-9)+8

                             = 15+(2(14)-9)+8

                             = 15+(28-9)+8

                             = 15+19+8

                             = 42 units