If these two shapes are similar, what is the measure of the missing length z?
z = ___ milimeters

Answer:
z = 10 mm
Step-by-step explanation:
[tex]\frac{z}{15} =\frac{40}{60\\}[/tex]
[tex]z * 60 = 40 * 15[/tex]
[tex]60z = 600[/tex]
[tex]z = 10\\[/tex]