Law of Cosines - Assessment

Law of Cosines

Assessment

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abeer alnimer

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Mathematics

•

10th - 12th Grade

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8 questions

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1.

Multiple Choice

5 sec

1 pt

Which of the following formulas shows the Law of Cosines?

c² = a² + b² - 4ac + cosA

c² = a² - b² - 2abcosC

c² = a² + b² - 2abcosC

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

2.

Multiple Choice

15 mins

1 pt

Find angle Z

20.15°

71.23°

51.06°

57.71°

3.

Multiple Choice

15 mins

1 pt

Use Law of Cosines to find angle T

62.2°

53.1°

59.5°

64.7°

4.

Multiple Choice

30 sec

1 pt

If three sides of a triangle are given, the Law of ____ is used to solve the triangle.

Cosines

Sines

Tangent

Cosecents

5.

Multiple Choice

5 sec

1 pt

Which Law would you use?

Law of Sines

Law of Cosines

Law of the Jungle

Law of Gravity

6.

Multiple Choice

5 mins

1 pt

Find m<C

A

B

C

D

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