Classifying Right Triangles

This lesson covers the classification of right triangles by examining their angles and sides. It begins with an introduction to right angles and moves on to explain different types of angles: acute, right, and obtuse. The lesson then details how to classify triangles based on angles, such as acute, obtuse, and right triangles. It also explains classification by sides, including equilateral, isosceles, and scalene triangles. Finally, it discusses specific types of right triangles, such as scalene right triangles and isosceles right triangles, emphasizing the importance of using both angles and sides for classification.

Which angle is characterized by measuring exactly 90 degrees?

• Straight angle

• Obtuse angle

• Right angle

• Acute angle

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

• Acute triangle

• Obtuse triangle

• Right triangle

• Equilateral triangle

How is a triangle with all sides of equal length classified?

• Isosceles triangle

• Scalene triangle

• Equilateral triangle

• Right triangle

What is a scalene right triangle?

• A triangle with one right angle and two equal sides

• A triangle with one obtuse angle

• A triangle with one right angle and no equal sides

• A triangle with all angles less than 90 degrees

Which type of right triangle has two sides of equal length?

• Scalene right triangle

• Isosceles right triangle

• Equilateral right triangle

• Obtuse right triangle