If m ACD = 30 => m DCB = 60.
In triangle ACD:



AC^{2}+CB^{2}=AB^{2} => AB=

=32.
=> P=16+32+

=48 +

.
Answer:
11
Step-by-step explanation:
you just divide it
1:50 => 1 part oil + 50 parts high-octane gasoline
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