Types of Triangles and Their Properties

The video tutorial explains different types of triangles based on their side lengths and angles. It covers scalene, isosceles, and equilateral triangles, highlighting their unique properties. Additionally, it discusses acute, obtuse, and right triangles, focusing on their angle measures. The video emphasizes that all triangles have at least two acute angles, and the third angle determines the triangle type.

Which type of triangle has all sides of different lengths?

• Right

• Scalene

• Isosceles

• Equilateral

In an isosceles triangle, how many sides are equal?

• One

• Two

• Three

• None

What is the measure of each angle in an equilateral triangle?

• 45°

• 60°

• 90°

• 120°

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

• Scalene

• Right

• Obtuse

• Acute

Which triangle has one angle greater than 90°?

• Obtuse

• Right

• Acute

• Equilateral