Determine the quadrant to sketch your angle based on the constraint

The video tutorial explains how to determine the placement of angles in different quadrants based on constraints. It emphasizes constructing triangles with correct angles, ensuring they are perpendicular to the X-axis. The tutorial also covers cosine values, the Pythagorean theorem, and the importance of triangle orientation, highlighting how the direction affects the sign of the sides.

In which quadrant is a constraint less than zero typically found?

• Fourth quadrant

• Third quadrant

• First quadrant

• Second quadrant

What is the range of angles for the second quadrant?

• 3π/2 to 2π

• π/2 to π

• π to 3π/2

• 0 to π/2

Why must the 90-degree angle of a triangle be perpendicular to the X-axis?

• To ensure the triangle is in the first quadrant

• To maintain the triangle's orientation

• To simplify calculations

• To align with the central angle

Which theorem can be used to find the third side of a triangle?

• Pythagorean theorem

• Sine rule

• Cosine rule

• Area formula

What happens to the value of a side if the triangle is oriented downwards?

• It remains unchanged

• It becomes positive

• It becomes negative

• It doubles