Exploring Triangles and Their Hierarchy

The video tutorial covers the classification of triangles based on angle measurements and side lengths. It explains the characteristics of acute, right, and obtuse triangles, as well as scalene, isosceles, and equilateral triangles. The tutorial also discusses how to combine these classifications and provides practice examples. The session concludes with a task involving diagrams to reinforce the learning.

What type of triangle has all angles less than 90 degrees?

• Acute triangle

• Isosceles triangle

• Obtuse triangle

• Right triangle

Which triangle has exactly one angle measuring 90 degrees?

• Acute triangle

• Right triangle

• Obtuse triangle

• Equilateral triangle

What is the sum of all interior angles in any triangle?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees

Which triangle has sides of different lengths?

• Isosceles triangle

• Equilateral triangle

• Scalene triangle

• Acute triangle

What defines an isosceles triangle?

• At least two sides equal

• All sides equal

• Exactly two sides equal

• No equal sides

Which triangle is also a special type of isosceles triangle?

• Equilateral triangle

• Right triangle

• Obtuse triangle

• Scalene triangle

What type of triangle has all sides of the same length and all angles less than 90 degrees?

• Acute scalene

• Obtuse scalene

• Acute equilateral

• Right isosceles

Which triangle has one right angle and sides of different lengths?

• Right scalene

• Obtuse isosceles

• Right isosceles

• Acute scalene

A triangle with one angle more than 90 degrees and two sides of the same length is called?

• Acute isosceles

• Right equilateral

• Obtuse isosceles

• Right scalene

Which diagram helps in classifying triangles by both angle measurements and side lengths?

• Bar graph

• Line graph

• Venn diagram

• Pie chart