1 Answer

Anna Harrison · Answer 1 · 2020-09-13T04:50:43+0000

Answer:

x = 19.4

Explanation:

For the 72-deg angle, 6 is the adjacent leg. x is the hypotenuse. The trig ratio that relates the adjacent leg to the hypotenuse is the cosine.

$\cos A = (adj)/(hyp)$

$\cos 72^\circ = (6)/(x)$

$x \cos 72^\circ = 6$

$x = (6)/(\cos 72^\circ)$

x = 19.4

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