Start by identifying the hypotenuse of the right triangle. Then find the sides that are opposite and adjacent to ∠ X.
7/25=0.28
For the given right triangle, we want to write the ratio for the cosine of ∠ X. Let's start by identifying the hypotenuse of the triangle and the sides that are opposite and adjacent to ∠ X.
We see that the length of the hypotenuse is 75. The length of the side adjacent to ∠ X is 21 and the length of the side opposite to ∠ X is 72. With this information, we can find the desired ratio.
