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Mathematics 9 Online
OpenStudy (shaleiah):

hypotenuse

OpenStudy (anonymous):

same

OpenStudy (anonymous):

uness i did something wrong

OpenStudy (irishboy123):

-120 you are kidding , right??!!

OpenStudy (shaleiah):

@smilie2015

OpenStudy (smilie2015):

The 30-60-90 triangle has side ratios 1:2:sqrt(3), with 2 the hypotenuse. Since this hypotenuse has length 4, we multiply everything be 2 and get 2:4:2*sqrt(3). The perimeter is the sum: 6+2*sqrt(3).

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