Triangle Classification and Properties

The video explores the fascination with triangles, discussing their classification based on side lengths and angles. It introduces scalene, isosceles, and equilateral triangles, as well as acute, right, and obtuse angle triangles. The video also examines the properties of triangles, such as the impossibility of having two right angles, and concludes with a call to action to subscribe for more content.

What are the two main criteria for classifying triangles?

• Color and size

• Length of sides and measurement of angles

• Area and perimeter

• Number of vertices and edges

Which type of triangle has all sides of different lengths?

• Right triangle

• Equilateral triangle

• Scalene triangle

• Isosceles triangle

What is the name of a triangle with two equal sides?

• Isosceles triangle

• Equilateral triangle

• Right triangle

• Scalene triangle

Which triangle has all three sides equal?

• Right triangle

• Isosceles triangle

• Equilateral triangle

• Scalene triangle

What defines an acute angle triangle?

• All angles are less than 90 degrees

• One angle is more than 90 degrees

• One angle is exactly 90 degrees

• All angles are 90 degrees

What is a right angle triangle?

• A triangle with all sides equal

• A triangle with one angle more than 90 degrees

• A triangle with one angle exactly 90 degrees

• A triangle with all angles less than 90 degrees

Which triangle has one angle greater than 90 degrees?

• Acute angle triangle

• Right angle triangle

• Obtuse angle triangle

• Equilateral triangle

Why can't a triangle have two right angles?

• It would be a circle

• It would have no angles

• It would have more than three sides

• It would not form a closed figure

What must the other two angles in a right triangle be?

• Equal to each other

• More than 90 degrees

• Less than 90 degrees

• Exactly 90 degrees

What is the definition of a polygon?

• A figure with curved lines

• A figure with only one side

• A closed geometric figure made up of lines

• A figure with no angles