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Answer:
answer is 4.5
Explanation:
i believe that's the length of HD.
I hope this helps you
27/6=9/PH=DI/OH
27/6=9/PH
9.3/6=9/PH
3/3.2=1/PH
1/2=1/PH
PH=2
HD=9+2=11
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