Answer:
So, PR = 132.35 ft.
Explanation:
Let PR be x ft.
In traingles PRE and POC
<PRE=<POC (both r 90)
<RPE=<OPC(common angles)
<PER=<PCO(remaining angles)
trangle PRE and POC are similar by A.A.A axiom
now
RE/OC=PR/PO=PE/PC(corresponding sides of similar triangles are proportional)
or, 180/350 = x/(x+125)=PE/PC
(PO= x+125)
Now
180/350=x/(x+125)
or, 180x+22500=350x
or, 22500= 170x
or, x = 22500/170
so, x = 132.352
so, x = 132.35