SOLUTION: how to get a 30 60 90 triangles ?

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Question 539773: how to get a 30 60 90 triangles ?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The sides are in the ratios 1 : sqrt(3) : 2
where 2 is the hypotenuse
To construct:
(1) choose a point on a horizontal line
(2) mark off 1 unit from this point ( any units )
(3) At this 2nd point, erect a vertical line
(4) Now swing an arc 2 units long from the starting point
until it intersects the vertical line
(5) You have constructed a 30-60-90 triangle