-- Make sure you have the lengths of all three sides
-- Add up the lengths of all three sides to get the perimeter of the triangle.
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The perimeter of a 30-60-90 triangle if the hypotenuse is 3 is: 7.098
That number is called the "perimeter" of the triangle.
49.5 units
180 degrees
Add the lengths of each side together to get the perimeter.