For this problem, you have to use sin, cos or tan. a way to remember which is which is this: soh cah toa. u also need to kmow the 3 sides of a triangle when looking at the angle. the 40 is on the hypotenuse side(the side across from the right angle, located by the square) it is represented by (H) the 25 is adjacent or(next to) the angle. therefore, you need to use cosine for this problem. so you would do cos(adjacent/hypotenuse) or (cah) so in the calculator put it in as cos(25/40)

Divide by 3 on both sides:

Square root both sides:

Take away 3 from both sides:

Divide by 2 on both sides:

Answer:
A 1 in 3 chance or 33.33%
Answer:
68 ft
I've attached the Trignometric ratio theory as well
<em>hope you understood </em><em>:</em><em>)</em>