Aramp is used to load suitcases on an airplane. if the cargo door is 7 feet from the ground and the angle formed by the end of the ramp and the ground is 25, how long is the ramp?

Step-by-step explanation:

You must draw a right triangle as the one attached, where "x" is the lenght  in feet of the ramp.

You need to use the following Trigonometric Identity:

In this case you can identify that:

Now you must substitute these values into :

Finally, you must solve for "x" in order to find its value.

This is:

correct answer:

a + bi