MATHS - Geometry - Bearings Pythagoras and SOHCAHTOA

The video tutorial explains how to use Pythagoras' theorem and SOHCAHTOA to solve right-angled triangles. It demonstrates finding missing sides using these methods and introduces the sine and cosine theorems for non-right-angled triangles. The tutorial includes practical examples and encourages viewers to apply these concepts to solve problems.

What is the length of side CB in triangle ABC if AB is 12 and AC is 13?

• 10

• 7

• 5

• 3

In triangle BCD, if BC is the hypotenuse and angle BCD is 30 degrees, which trigonometric function helps find DC?

• Secant

• Sine

• Cosine

• Tangent

What is the cosine of 30 degrees used for in triangle BCD?

• To find the angle

• To find the hypotenuse

• To find the adjacent side

• To find the opposite side

In the problem involving triangles KML and NLM, what is the first step to find MN?

• Calculate ML using tangent

• Use sine to find KM

• Find the angle MKL

• Directly apply Pythagoras' theorem

What is the length of MN in the triangle NLM after using Pythagoras' theorem?

• 12

• 9

• 8

• 6