Instructions: find the missing side length in the image below

Answer:
16
Step-by-step explanation:
same as other side should be
but i dont know why theres a 45 :(
Length of missing side is 36 units.
Ratio is defined as a relationship between two quantities, it is expressed one divided by the other.
Let length of missing side is x
Since horizontal lines are parallel, so ratio of sides are equal
20/16 = 45/x
x= (45/20)16
x = 36
Hence, length of missing side is 36 units.
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