Evaluate the radical expression. Express your answer as an integer, simplified fraction, or a decimal rounded to two decimal pla
ces. If the expression does not represent a real number, indicate not a real number. 
1 answer:
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Answer:
Step-by-step explanation:
Since the two triangles are similar, you can use proportions to solve for the value of
Now, just multiply 4 and 12.
Then divide that by 3.
Therefore, .