SOLUTION: Find the missing side length. http://my.thinkwell.com/questionbank/95001-96000/95680/img/238251.jpg Options: 15 25 6.7 OR cannot be determined

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Question 935011: Find the missing side length.
http://my.thinkwell.com/questionbank/95001-96000/95680/img/238251.jpg
Options:
15
25
6.7
OR
cannot be determined

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

the missing side is hypotenuse c of the right angle triangle; so, use Pythagorean theorem to find it
given legs: a=12 and b=9

c%5E2=a%5E2%2Bb%5E2
c%5E2=12%5E2%2B9%5E2
c%5E2=144%2B81
c%5E2=225
c=sqrt%28225%29
highlight%28c=15%29
your answer is: 15