Answer:
The shorter piece is 18 cm long.
Step-by-step explanation:
A ratio can be written as a fraction. So, 2:5 can be written as [tex]\frac{2}{5}[/tex]
Let the shorter piece be x cm long.
This means:
[tex]\frac{x}{45} = \frac{2}{5}[/tex]
If we cross multiply we get
5x = 2(45)
5x = 90
x = 18
