Help: geometry

The length of the longer leg of a 30°– 60°– 90° triangle with hypotenuse length 4 is _____

I do not understand how to figure this out.

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  1. The sides of the 30°-60°-90° are in the ratio of
    1 : √3 : 2

    so yours is a : b : 4

    b/√3 = 4/2
    b = 2√3

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