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Ber [7]
3 years ago
9

PLEASE HELP I GIVE THANKS

Mathematics
1 answer:
iris [78.8K]3 years ago
5 0
Let's say 'x' to the unknown length, since the sides are proportional we can build up a equation like this : \frac { 11 }{ 8 } =\frac { x }{ 12 } \\ 11\cdot 12=8x\\ 132=8x\\ \frac { 132 }{ 8 } =x\\ x=16.5 
The answer is A.
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