The length of the hypotenuse of a 30°-60°-90° triangle is 12. Find the perimeter.

Answer 1

sides of standard 30-60-90 triangle are 1 , √3, 2

so the larger triangle has sides 6, 6√3 and 12
(multiplied by a factor of 6)

perimeter = 6 + 6√3 + 12 = 18 + 6√3

Answer 2

thanks

Answer 3

I just took the test and the answer is in fact D. 18+6 sqrt 3