Learn to determine when there is 1, 2 or no triangle

The video tutorial covers the concept of oblique triangles, focusing on the ambiguous case where one, none, or two triangles can exist. It explains how to solve for angle B using the sine rule and provides tips on using a calculator for trigonometric calculations. The tutorial concludes by explaining why certain conditions result in no triangle being possible.

What type of triangle is characterized by having at least one angle that is not acute?

• Right triangle

• Equilateral triangle

• Oblique triangle

• Isosceles triangle

In the ambiguous case of the SSA scenario, how many possible triangles can be formed?

• One or two triangles

• One, two, or no triangles

• Only one triangle

• No triangles

What is the preferred method to solve for angles in the ambiguous case?

• Solving directly without flipping

• Using the cosine rule

• Flipping the ratio so angles are on top

• Using the tangent rule

What function is used to find the angle B from its sine value?

• Cosine inverse

• Tangent inverse

• Secant inverse

• Sine inverse

What does an error indicate when using a calculator to find an angle in a triangle?

• The angle is too large

• No triangle can exist

• The triangle is equilateral

• The angle is too small