Classifying Triangles Based on Sides' Length

The video tutorial explains how to classify triangles based on their angles and side lengths. Triangles can be categorized into right, obtuse, and acute based on angles, and into equilateral, isosceles, and scalene based on side lengths. Equilateral triangles have all sides and angles equal, isosceles triangles have two equal sides and angles, and scalene triangles have no equal sides or angles. The tutorial also discusses combining these classifications, such as right isosceles triangles.

Which type of triangle has all three sides and angles equal?

• Right triangle

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

What is the characteristic of an isosceles triangle?

• It has a right angle

• All angles are different

• Two sides are equal

• All sides are different

How many sides of a scalene triangle are equal?

• Three

• One

• None

• Two

What do you call a triangle with a right angle and two equal sides?

• Right scalene triangle

• Right isosceles triangle

• Obtuse isosceles triangle

• Equilateral triangle

Which of the following can be a combination of angle and side classification?

• Acute scalene triangle

• Acute isosceles triangle

• Obtuse equilateral triangle

• Right isosceles triangle