In a right triangle, for a chosen acute angle, the adjacent side is 4 and the hypotenuse side is 5. What is cos of the angle?
Note
Cosine means adjacent ÷ hypotenuse. So cos θ = 4 ÷ 5 = 4/5.
In a right triangle, for a chosen acute angle, the adjacent side is 4 and the hypotenuse side is 5. What is cos of the angle?
Cosine means adjacent ÷ hypotenuse. So cos θ = 4 ÷ 5 = 4/5.