The video tutorial explains how to classify triangles based on their sides. It covers the characteristics of equilateral, isosceles, and scalene triangles, focusing on the number of congruent sides. The tutorial concludes by identifying a given triangle as isosceles due to its two congruent sides.

What do the tick marks on a triangle's sides indicate?

• The sides are equal.

• The sides are parallel.

• The sides are different.

• The sides are perpendicular.

Which type of triangle has all three sides of equal length?

• Right-angled

• Equilateral

• Isosceles

• Scalene

How many sides are congruent in an isosceles triangle?

• One

• None

• Two

• Three

What is the characteristic of a scalene triangle?

• It has a right angle.

• No sides are equal.

• Two sides are equal.

• All sides are equal.

If a triangle has two sides of equal length, what type of triangle is it?

• Equilateral

• Isosceles

• Right-angled

• Scalene