Bearings and Trigonometry

• 9.28
• 2.87
• 2.97
• 8.76

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

What is
the correct bearing?

• 30

• 330

• 030

• 60

Choose the correct true bearing

• 62

• 062

• 332

• 152

E, F and G lie on the earth’s surface. The bearing of G from F is:

• 028

• 105

• 208

• 255

Axminster is 31.7 km due West of Raytown. Axminster is also 45.3 km due South of Jigtown. Find the bearing of Raytown from Jigtown, rounded to the nearest degree.

• 6.99
• 6.33
• 13.59
• 7.83

Find the length of side AB.

• 10

• 8

• 6.1

• 4.9

What is the measure of angle A?

True Bearing are described by measuring from North EVERY time. True or False?

• True

• False

Answer explanation