1. You try it Find the geometric mean between 2 and 18. 6

2. White Board Practice Simplify

3. White Board Practice

4. Simplify

5. White Board Practice

6. Group Practice If r = 2 and s = 8 find h. r b c s h a h =4

7. Group Practice If b= 3 and c = 9 find r. r b c s h a r =1

8. Group Practice If c= 15 and r = 3 find a. r b c s h a a =6√5

9. Find the value of each variable 1. x 3 2

10. Find the value of each variable 1. x 3 2

11. Find the value of each variable 2. 6 4 y

12. Find the value of each variable 2. 6 4 y

13. The sides of a triangle have the lengths given. Is the triangle acute, right, or obtuse? 2. 5, 12, 14

14. The sides of a triangle have the lengths given. Is the triangle acute, right, or obtuse? 2. obtuse

15. The sides of a triangle have the lengths given. Is the triangle acute, right, or obtuse? 3. 6, 7, 8

16. The sides of a triangle have the lengths given. Is the triangle acute, right, or obtuse? 3. acute

17. White Board Practice 9 y x 30º y = 3√3 x = 6√3

18. 30º 45º 8 x X = 8√2

19. White Board Practice The base angles of an isosceles triangle are 30 degrees. The base has a length of 12. Find the length of the altitude to the base. 2√3

20. The diagonals of a rhombus are 8 and 12. Find the length of one side of the rhombus. 2√13

21. Find Tan A A B C 7 2 Tan A 11

22. Find sin B A B C 4 3 sin B

23. Set up an equation that can be used to solve for x 35º 10 x Tan 35º Tan 55º 55º

24. Find an equation to solve for angle y yºyº 8 5 Cos yº

25. The angle of depression from the top of a tower to POINT X is 30 degrees. The tower is 300ft tall. Set up an equation to find the distance (d) from the base of the tower to POINT X. Tan 30ºTan 60º