00:01
In this problem, we're trying to find out the angle of incline for a ramp that a car is driving on.
00:07
We know that the horizontal length of the ramp is 20 feet, which is signified by the base of this triangle.
00:13
We know that the height of the ramp is four feet, which is signified by the height of this triangle.
00:19
So our base and our height do create this right angle.
00:22
So i'm going to be able to use my trigonometric ratios in order to solve for the angle of the ramp, the angle of incline.
00:31
So i labeled my angle theta, and i know that the tangent of theta is equal to the opposite side over the adjacent side.
00:42
So i can say tangent of theta is equal to opposite, which is going to be four feet.
00:52
So that's the side that's completely opposite that angle over the adjacent side.
00:58
So my adjacent side means it's the one that's touching the angle...