[PDF] IB Math SL 1 – Law of Cosines and Sines Practice - Reinsch Math PDF law_of_cosines_and_sines_practice

82° 85 100 x x° 14 7 1 6 3 x 17 9 5 23° IB Math SL 1 – Law of Cosines and Sines Practice WS Name: Find each indicated measurement Give an exact

The law of cosines bear Pythagorean Theorem Cosines, if two sides of a b and if the Glencoe/McGraw-Hill 203 Advanced Mathematical Concepts Practice

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Extra Practice ©S V2J0D1z1w IKnuittaW vSeoYfptawhaJrRer 7LCLgCk Q F 1AHlUlO sr7iogIhQtvsb erCedsAexrcveeJdQ D Sine Law and Cosine Law

[PDF] IB Math SL 1 – Law of Cosines and Sines Practice - Reinsch Math

82° 85 100 x x° 14 7 1 6 3 x 17 9 5 23° IB Math SL 1 – Law of Cosines and Sines Practice WS Name: Find each indicated measurement Give an exact

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Sine and Cosine Laws Level 2 1 In the following (primary trig ratios, cos law, sin law) and write the I can apply sine/cosine law to find unknown values in

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LESSON Law of Sines 17-2 Answers Find the measures indicated Round to the nearest tenth 1 B Sinbo Sin 28 2 455 a CASA AAS mLG = 180-96-45-390

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Practice 8-6 Law of Cosines Name Class Date Practice 8-6 Law of Cosines Form G Use the information given to solve 1 In nABC m A 40 AB 9 2 and AC 8 5 To the nearest tenth / 5 5 what is BC? 6 1 2 In PQR m Q 112 PQ 12 5 and QR 14 2 To the nearest tenth n / 5 5 5 what is the length of PR? 22 2 3 In GHK GH 11 HK 21 and GK 15

8-6 Practice Form K - Richard Chan

8-6 Practice Law of Cosines Use the information given to solve Date Form K 1 In nABC m/A 5 45 AB 5 20 and AC 5 15 To the nearest tenth what is BC? First draw and label a triangle en use the Law of Cosines to write an equation BC 2 5 u2 20 1 u2 15 2 2 ? u 20 ? ucosu 15 45 Solve for BC BC 14 2 z B 20 A 45 15 C 2

8-6 Practice Form K - Richard Chan

For each triangle shown below determine whether you would use the Law of Sines or Law of Cosines to find the value of x Explain Then find the value of x to the nearest tenth 13 Error Analysis A student found the measure of the smallest angle of a triangle with side measures 8 11 and 13 = What mistake did the student make?

Find each indicated measurement. Give an exact answer before rounding your answers to three decimal places.

1. Solve for x.

2. Find the measure of AB.

3. Find the measure of the largest angle in the triangle with sides of length 4 m, 5 m, and 6 m.

4. Find the measure of angle C.

5. Solve for x.

6. Find all of the angles in the triangle with

16.4a 21.1b
18.5c

7. Triangle ABC has angle

36 , 17, 16C a c

. Find the possible measures of angle A.

8. One diagonal of a parallelogram is 6 centimeters long, and the other is 13 centimeters long. They form an

angle of 42
with each other. How long are the sides of the parallelogram?

9. Solve for x.

10. Find the measure of AB.

11. Find the measure of angle A in triangle ABC

with

30 , 18, 9C a c

12. Find the measure of angle G in triangle FGH with

7f 33g
14F

ANSWERS

1. 121.898

2. 8.048

82.819

43.074 5. No solution

48.383A

74.123B

57.494C

38.647A

141.353A

8. 4.719cm and 8.957cm

9. 8.857 or 22.44

10. 29.093

11. 90

12. No solution

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[PDF] [PDF] IB Math SL 1 – Law of Cosines and Sines Practice - Reinsch Math