In a right triangle, for a chosen acute angle, the adjacent side is 9 and the hypotenuse side is 15. What is cos of the angle?
Note
Cosine compares the adjacent side with the hypotenuse: cos θ = adjacent ÷ hypotenuse. Here, cos θ = 9 ÷ 15 = 9/15.
In a right triangle, for a chosen acute angle, the adjacent side is 9 and the hypotenuse side is 15. What is cos of the angle?
Cosine compares the adjacent side with the hypotenuse: cos θ = adjacent ÷ hypotenuse. Here, cos θ = 9 ÷ 15 = 9/15.