Question

How do I solve this? question:
Use the Special Right Triangle to evaluate sin 60°, cos 60° and tan 60°. Your answers should be exact (not a decimal).

Answer 1

I learned about sine, cosine, and tangent, but I have no idea how I am supposed to evaluate angles with them. Please walk me through this?

Answer 2

@Visarika23

Answer 3

Ask @zepdrix ...he will explain in a better way

Answer 4

I'd suggest you draw a 30-60-90 degree triangle.
Next, focusing on the 60-degree angle, identify the hypotenuse, the opposite side and the adjacent side.
Use the Draw utility, below.
Once you've done these things, we can progress further.

Answer 5

But that's a problem! I have to show all my work for this question, but I can't use any drawings! I can only use words and equations or math sentences.

Answer 6

Describe the problem in words then. You are creating a 30-60-90 right triangle (which means one of the angles is 90 degrees). In your mind, focus on the 60 degree angle. What is the length of the side of the triangle that is OPPOSITE the 60 degree angle?

You will see problems of this nature again and again and again, so please make the effort to learn what a "special triangle" is (especially the 30-60-90 triangle), what the side lengths are, where the opposite and adjacent sides are, where the hypotenuse is, and so on.

Answer 7

This is also a problem with me...i can't use drawings or equations

Answer 8

ok.......I searched about side lengths of 30-60-90 triangle, and it gave 1, 2, and √3. So can these be used as the side lengths? or are they ratios?

I'm having trouble with this because my teacher never actually taught me about special right triangle. She just gave me an image labeling the hypotenuse and the legs and the angle measures, but nothing more:(

Answer 9

u have to use them as ratios

Answer 10

hmmmm........ ok.

Answer 11

Please copy down this diagram showing a 30-60-90 triangle. You MUST know this triangle and know how to use it.