ANSWER
19.86 m
EXPLANATION
In the diagram we have the measure of angle B and the length of its adjacent side. We want to find the length of the hypotenuse of the triangle. With the given information, we can use the cosine of the given angle to find it:
[tex]\cos 25º=\frac{18m}{x}[/tex]Solving for x:
[tex]x=\frac{18m}{\cos 25º}\approx19.86m[/tex]Rounded to the nearest hundredth
