SOLUTION: The question says to find the missing length indicated and leave the answer in simplest radical form. How do you do that

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Question 708827: The question says to find the missing length indicated and leave the answer in simplest radical form. How do you do that
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Something that your teacher needs to explain.

During the arithmetic solving process, maintain square root symbolism at the end of the calculation and solution process; do not compute or calculate any further than the use of the square root symbol. That is all which it means.

Example: you are finishing some solution that gives you sqrt%283%29%2F2, and you know that sqrt%283%29 is very near to 1.732, so if you needed to use a value for the irrational fraction, sqrt%283%29%2F2, and to evaluate 1.732%2F2=0.866, DO NOT do that. Keep the result as sqrt%283%29%2F2.