Algebra 213.5 Law of Sines

Learning Target:Use the Law of Sines to find the

angles and sides of a non-right triangle. [G.SRT.11]

Solve for each triangle. Round to nearest tenth.

1.A = ______

a = ______

c = ______

2. In ∆GHJ, m∠H = 96°, j = 17, h =19

G = ______

J = ______

g = ______

E = ______

F = ______

e = ______

3. In ∆DEF, m∠D = 51˚, d = 18, f = 17

Assignment: 13.5 Worksheet with review

problems from 13.1,4

Answers to 13.5 WS

5. C

Front

Back1. 7√3 2. √30 / 3 3. √15 / 104. √3 / 2 5. 2√5 / 5 6. 11√7 / 28

7. sin θ = 2√13 / 13 csc θ = √13 / 2

cos θ = 3√13 / 13 sec θ = √13 / 3

tan θ = 2 / 3 cot θ = 3 / 2

8. 0.4452 9. 1.4396 10. 4.8097

11. A = 65˚ b = 3.7 c = 8.8

12. A = 60˚ B = 30˚ a = 8.7