Quiz about Law of Sines and Law of Cosines

Question 1

Which of the following formulas shows the Law of Cosines?

Accepted Answer

c² = a² + b² - 2abcosC

Answer

c² = a² + b² - 4ac + cosA

Answer

c² = a² - b² - 2abcosC

Answer

(cos A)/a = (cos B)/b

Question 2

Which Law would you use?

Accepted Answer

Law of Cosines

Answer

Law of Sines

Answer

Law of the Jungle

Answer

Law of Gravity

Question 3

Which Law would you use?

Accepted Answer

Law of Sines

Answer

Law of Cosines

Answer

Law of the Jungle

Answer

Law of Gravity

Question 4

What is the measure of angle A?

Accepted Answer

78 degrees

Answer

50 degrees

Answer

60 degrees

Answer

74 degrees

Question 5

What is the length of side x?

Accepted Answer

105 cm

Answer

130 cm

Answer

112 cm

Answer

150 cm

Question 6

Use Law of Cosines to find XZ

Accepted Answer

34.7 meters

Answer

16.004 meters

Answer

544.165 meters

Answer

1204.165 meters

Question 7

Find the length of Side BC.

Accepted Answer

33

Answer

24

Answer

12

Answer

29

Question 8

Find the length of side AB.

Accepted Answer

8

Answer

10

Answer

6.1

Answer

4.9

Question 9

What is the measure of angle A?

Accepted Answer

78 degrees

Answer

58 degrees

Answer

61 degrees

Answer

74 degrees

Question 10

Find the length of side AC.

Accepted Answer

14

Answer

12

Answer

10

Answer

23

Question 11

What is the measure of angle A?

Accepted Answer

78 degrees

Answer

50 degrees

Answer

60 degrees

Answer

74 degrees

Question 12

Which Law would you use to solve for Angle B?

Accepted Answer

Law of Cosines

Answer

Law of the Jungle

Answer

Law of the Gravity

Answer

Law of Sines

Question 13

Which Law would you use?

Accepted Answer

Law of Cosines

Answer

Law of Sines

Answer

Law of the Jungle

Answer

Law of Gravity

Question 14

find X

Accepted Answer

29

Answer

52

Answer

33

Answer

41

Question 15

What is tan^-¹(0)?

Accepted Answer

0

Answer

90

Answer

180

Answer

270

Question 16

Identify the Law of Sines

Accepted Answer

Sin(A)/a = Sin(B)/b = Sin(C)/c

Answer

Sin²x + Cos²x =1

Answer

Sin(A)Sin(B)Sin(C) = 1

Answer

Soh-Cah-Toa

Question 17

Which of the following formulas shows the Law of Cosines?

Accepted Answer

c² = a² + b² - 2abcosC

Answer

c² = a² + b² - 4ac + cosA

Answer

c² = a² - b² - 2abcosC

Answer

(cos A)/a = (cos B)/b

Question 18

Mr. Brow saved you from doing too much by setting up this Law of Sines problem for you. Solve for x!

Accepted Answer

26.79

Answer

13.56

Answer

20.9

Answer

25.44

Question 19

Mr. Brow is being really nice and has once again set up a Law of Sines problem for you. What a great guy.

Accepted Answer

34

Answer

32

Answer

33

Answer

30

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