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Mathematics 13 Online
OpenStudy (anonymous):

The shorter leg of a 30-60-90 triangle is 18. What is the length of the hypotenuse?

jimthompson5910 (jim_thompson5910):

If the shorter leg is 10, then the hypotenuse is double that and it is 10*2 = 20

jimthompson5910 (jim_thompson5910):

This works for any 30-60-90 triangle

OpenStudy (anonymous):

My options does not include 20 .

OpenStudy (anonymous):

A) 36 B) 9 C) 12 sqrt 3 D) 6 sqrt 3

jimthompson5910 (jim_thompson5910):

Well that's odd...and that's all the question states?

OpenStudy (anonymous):

the answer is 20

jimthompson5910 (jim_thompson5910):

Yeah there has to be a typo or something missing.

OpenStudy (anonymous):

even you will use pythagorean theorem you will get 20

OpenStudy (anonymous):

My mistake . the triangle is 18 . Not 10 !

OpenStudy (anonymous):

So 36.

jimthompson5910 (jim_thompson5910):

Yes finaiized is correct

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