Opposite and adjacent are relative to the chosen angle. The hypotenuse is always the side opposite the right angle.
Where this helps
Matching opposite, adjacent, and hypotenuse lengths to an angle.
Before you start
Use this topic to practice math you have already learned. The examples show the available kinds of recall tasks; this is not a complete textbook chapter. Check the answer form and any stated conditions.
Try a few examples
Real practice. Real progress.
Example 1 of 4
In a right triangle, relative to angle θ: adjacent = 7, hypotenuse = 10. Find cos θ.
Not drawn to scale
Ⓐ
opposite
Ⓑ
adjacent = 7
Ⓒ
hypotenuse = 10
Enter an exact number. Equivalent fractions, decimals, and percentages are accepted.
