Trigonometry-Word Probems-Finding Angles using Sine-MooMooMath

Trigonometry Application Problems-Using Sine

This is a short trigonometry problem that uses the trig function sine in order to solve an application problem.The application problem is asking for an angle measure of a right triangle.

A skateboard ramp is 6 feet long and three feet high,what is the angle of elevation?

Step 1. Draw a picture. When you draw the picture you notice the ramp forms a right triangle.

Step2. See which sides of the right triangle you have. In this problem you have opposite and hypotenuse.

Step3. When you are finding angle you will use the inverse function of sine I call these backward problem

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Video of the Day " Trigonometry Unit"

If you need help in trigonometry I have put together a trigonometry unit. This is one video of the trigonometric unit that contains 14 videos, along with a note taking guide for each video, Click here for the table of contents: Trig Unit

Video Guide
0:30 Definition of the trig ratios
2:42 Learning how to use the trig functions
Reviewing the steps
1.  Find the reference angle.
2. Label OPPOSITE, ADJACENT, HYPOTENUSE
3. Which two do you have?  Which function is it?
4. Set up the ratio
5. Solve it!
5:11 Practice problem 1 Deciding the functions
6:30 Practice 2 Find opposite side using tangent
7:45 Practice problem 3 Using cosine
9:53 Solving Tan 52/1 = x/12
12:33 Solving Sin 48/1=x/17
13:39 Solving Tan72/1 = x/34
15:03 Solving Cosine 25/1  = 7/x
17:22 Reviewing using trig functions