Answer:
C) 21 ft x 36 ft
Step-by-step explanation:
Because 7 * 3 = 21 ft & 12 * 3 = 36 ft
Answer: Choice A) 
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Work Shown:


When going from 234 to 9*26, the idea here is to factor where one factor is the largest perfect square possible. That way we can use the rule
to break up the root and simplify.