I don’t see an image of the figure, so I am assuming the figure is a triangle. If not, the answer may be different. The perimeter of triangle PQR = 41 cm.
If the figure looks like what I drew in this image, it should work as an answer. If not, remember that perimeter means adding all of the side lengths together. Ex. For a rectangle, P = 2l + 2w. And for a triangle, P = a + b + c, where the variables represent each of the sides.