A 26-foot long ladder is leaning against a building at a 60° angle with the ground.
Which of the following equations can you use to
find the height of the building, h?

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.