Answer:
21.7
Step-by-step explanation:
by Pythogorean theorm= 27^2 -16^2=x^2
x^2=729-256
x^2=473
x=√473
x=21.7
Answer: The answer would be to simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
2i√2
So according to me the answer should be 2i√2 .
* Hopefully this helps: )