1. A 60-foot ramp rises from the first floor to the second floor of a parking garage. The ramp makes a 15° angle with the ground. How high above the first floor is the second floor? Express your answer as a trig function.
Problem of the Day

2. Section 8-4b Trigonometry

3. Then
Now
Objectives
You found trigonometric ratios using right triangles.
Use trigonometric ratios to find angle measures in right triangles.

4. Common Core State Standards
Content Standards
G.SRT.6 – Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
G.SRT.7 – Explain and use the relationship between the sine and cosine of complementary angles.
Mathematical Practices
1) Make sense of problems and persevere in solving them.
5) Use appropriate tools strategically.
Common Core State Standards

6. Find x.
Example 4

7. Find x.
Example 4

8. To “solve a triangle”, find all of the missing angles and sides!!

9. Solve each triangle. Round side measures to the nearest tenth and angles measures to the nearest degree.
Example 5

10. Solve each triangle. Round side measures to the nearest tenth and angles measures to the nearest degree.
Example 5

11. p.574 #35 – 41, 43, 45, 72
Homework