The question is an illustration of line segments
The value of PB is 81 units
The parameters are given as:
AB = 53
AP = 28
Segment AB and AP have a common point at A.
This means that:
PB = AP + AB
So, we have:
PB = 28 + 53
Add both segments
PB = 81
Hence, the length of PB is 81 units
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