SPEDEC Facilitators Intelligence Test on angles and constructions

An angle measuring exactly 90 degrees is called a:

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

Which of the following is an obtuse angle?

• 45°

• 60°

• 120°

• 90°

An angle that is less than 90 degrees is called:

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

If two angles add up to 180 degrees, they are called:

• Complementary angles

• Supplementary angles

• Vertical angles

• Adjacent angles

Angles that add up to 90 degrees are called:

• Complementary angles

• Supplementary angles

• Vertical angles

• Reflex angles

What is the sum of all angles in a triangle?

• 90°

• 180°

• 270°

• 360°

Which of these angles is a reflex angle?

• 80°

• 150°

• 210°

• 90°

Two angles are complementary, and one angle is 30°. What is the other angle?

• 30°

• 45°

• 60°

• 90°

What is the name of an angle greater than 180° but less than 360°?

• Acute angle

• Obtuse angle

• Reflex angle

• Right angle

Which pair of angles is always equal?

• Complementary angles

• Supplementary angles

• Adjacent angles

• Vertically opposite angles