Math Entry #4 ( My Journal )

The Question was:

The perimeter of a triangle is 16cm. What is the missing measure? Record your work on your journal blog and express the measurements in cm and mm.

The side with 41mm is 4.1 cm, 5cm is 50mm, and the last side is 69mm is 6.9cm. The total in mm is 160mm and in cm is 16 cm.