Answer:
B. 14
Step-by-step explanation:
Those little lines on the sides of the triangles shows you which side is congruent to which, so x + 3 is congruent to the other triangle side which one small line, and 18cm and 2x - 4 is congruent.
2x - 4 = 18
add 4 to both sides
2x = 22
divide by 2
x = 11
Replace the x with 11
x + 3
11 + 3
14
