Respuesta :

gmany
Use the trigonometric function.

[tex]\cos x^o=\dfrac{28}{72}\\\\\cos x^o\approx0.3889\to x^o\approx67.1^o[/tex]

Answer:

x = 67.10° is the answer.

Step-by-step explanation:

The given triangle is a right angle triangle in which measure of angle is given as x°. Adjacent side (Base) of the angle x is 28 ft and largest side of the triangle (Hypotenuse) is of 72 ft.

We have to the value of x.

Now we find the cosine of angle x

cosx = [tex]\frac{\text{Base}}{\text{Hypotenuse}}[/tex]

cosx = [tex]\frac{28}{72}[/tex]

cosx = [tex]\frac{7}{18}[/tex] = 0.389

x = [tex]cos^{-1}(0.389)[/tex]

x = 67.10°

angle x = 67.10° is the answer.