1. Finding the Missing Side Practice

2. 25 o 40 ft x What do we know? Finding the Missing Side Step-by-Step

3. 25 o 40 ft x What do we want to know? Finding the Missing Side Step-by-Step We know: angle and opposite side

4. 25 o 40 ft x Which trigonometric ratio do we use? Finding the Missing Side Step-by-Step We know: angle and opposite side We want to know: hypotenuse

5. 25 o 40 ft x Set up and solve your proportion? Finding the Missing Side Step-by-Step We know: angle and opposite side We want to know: hypotenuse We sill use: sin

6. 25 o 40 ft x Set up and solve your proportion? Finding the Missing Side Step-by-Step We know: angle and opposite side We want to know: hypotenuse We sill use: sin

7. 46.9 meters x 54 o What do we know?

8. 46.9 meters x 54 o What do we want to know? We know: angle and hypotenuse

9. 46.9 meters x 54 o Which trig ratio do we use? We know: angle and hypotenuse We want to know : adjacent side

10. 46.9 meters x 54 o Set up and solve the proportion? We know: angle and hypotenuse We want to know : adjacent side We will use: cos

11. 46.9 meters x 54 o Set up and solve the proportion? We know: angle and hypotenuse We want to know : adjacent side We will use: cos

12. Using Trigonometric Ratios to Solve Problems Problem: A forest ranger must estimate the height of a tree. He stands 10 feet from the base of the tree and measures his angle of inclination at 62 o. What does this situation look like?

13. Using Trigonometric Ratios to Solve Problems Problem: A forest ranger must estimate the height of a tree. He stands 10 feet from the base of the tree and measures his angle of inclination at 62 o. tree Ranger 10 ft 62 o What do we know?

14. Using Trigonometric Ratios to Solve Problems Problem: A forest ranger must estimate the height of a tree. He stands 10 feet from the base of the tree and measures his angle of inclination at 62 o. tree Ranger 10 ft 62 o We know: angle and adjacent side What do we need?

15. Using Trigonometric Ratios to Solve Problems Problem: A forest ranger must estimate the height of a tree. He stands 10 feet from the base of the tree and measures his angle of inclination at 62 o. tree Ranger 10 ft 62 o We know: angle and adjacent side We need: opposite side Which trig ratio do we use?

16. Using Trigonometric Ratios to Solve Problems Problem: A forest ranger must estimate the height of a tree. He stands 10 feet from the base of the tree and measures his angle of inclination at 62 o. tree Ranger 10 ft 62 o We know: angle and adjacent side We need: opposite side We use: tangent Set up proportion and solve.

17. Using Trigonometric Ratios to Solve Problems Problem: A forest ranger must estimate the height of a tree. He stands 10 feet from the base of the tree and measures his angle of inclination at 62 o. tree Ranger 10 ft 62 o We know: angle and adjacent side We need: opposite side We use: tangent Set up proportion and solve.