Law of Sine & Cosine

What is the measure of angle A to the nearest degree?

• 50 degrees
• 60 degrees
• 78 degrees
• 74 degrees

Use the Law of Sines to solve for BC

• 33
• 24
• 12
• 29

Jack is flying his kite.  He runs 100 feet away from his house and lets out 75 feet of string.  The angle of elevation from the ground to the kite is 65 degrees.  How far away is the kite from the house?

• 9285.73 ft
• 96.36 ft
• 24061.81 ft
• 155.12 ft

Find m<B to the nearest degree.

• A
• B
• C
• D

• A
• B
• C
• D

Find m<C to the nearest tenth.

• A
• B
• C
• D

Find the length of side AB.

• 10

• 8

• 6.1

• 4.9

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

Amanda and Jamie are standing 25 feet apart and spot a bird in the sky between them.  The angle of elevation from Amanda to the bird is 55, and from Jamie to the bird is 63.  How far away is the bird from Amanda?

• 25.23
• 23.19
• 22.15
• 20.85

Solve for x. Round the answer to the nearest hundredth.

• 3.85

• 4.25

• 3.35

• 5.65