What is the connection between the leg opposite the 30-degree angle and the hypotenuse?

A triangle can be obtuse, that is, it has an obtuse angle greater than ninety degrees, acute-angled with angles that are less than ninety degrees, and rectangular, which has a right angle equal to ninety degrees. One of the properties of a right-angled triangle says that a leg opposite to an angle of thirty degrees is equal to half of the hypotenuse.



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