Question #77163
2 Answers
Malia is
Explanation:
Let's first break the diagram up into two right-angled triangles and name the vertices. Working anticlockwise from the top of the spire:
You have to have 3 facts to use trigonometry in a triangle:
- A
#90°# angle, - one side,
- another side or an angle.
Malia's triangle only has two; the angle of elevation and
In
You could calculate the answer, but you would have to round off. Let's leave it like this for the meantime.
In
Hope this helps?
Malia is standing 62.39 meters from the base of the spire.
Explanation:
First we want to find
so:
We can do the same with Malia's position except that now we want to know what is the length of the adjacent side: