How to Identify Scalene, Isosceles, and Equilateral Triangles
FAQs on Class 6 Maths Worksheet: Classifying Triangles by Sides
1. What are the 3 types of triangles by sides?
Triangles can be classified into three main types based on the length of their sides. This method helps in understanding the fundamental properties of triangles in geometry. The three types are:
- Equilateral Triangle: A triangle where all three sides are equal in length.
- Isosceles Triangle: A triangle that has two sides of equal length.
- Scalene Triangle: A triangle where all three sides have different lengths.
2. How do you classify triangles by their sides?
To classify a triangle by its sides, you need to measure or compare the lengths of its three sides. Based on the comparison, you can identify the triangle type. Here’s the simple rule:
- If all three sides are equal, it is an equilateral triangle.
- If only two sides are equal, it is an isosceles triangle.
- If no sides are equal, it is a scalene triangle.
3. What is an example of a scalene triangle?
A scalene triangle is a type of triangle in which all three sides have different lengths. For example, a triangle with side lengths of 5 cm, 7 cm, and 9 cm is a scalene triangle because none of the side measurements are the same.
4. How do you know if a triangle is isosceles?
A triangle is identified as an isosceles triangle if it has at least two sides of equal length. The key property to look for is the presence of a pair of equal sides. For example, a triangle with side lengths of 6 cm, 6 cm, and 4 cm is an isosceles triangle.
5. What is an equilateral triangle?
An equilateral triangle is a special type of triangle where all three sides are exactly equal in length. As a result of having equal sides, all three of its internal angles are also equal (60 degrees each). A triangle with sides measuring 8 cm, 8 cm, and 8 cm is an equilateral triangle.
6. Does this Class 6 Maths worksheet include an answer key?
Yes, every Class 6 Maths worksheet on classifying triangles by sides comes with a detailed answer key. The answer key is provided on a separate page, making it easy for parents and students to check the answers and reinforce their learning effectively.
7. Is this worksheet on classifying triangles by sides printable?
Absolutely. This worksheet on classifying triangles by sides is designed as a free, downloadable PDF file. You can easily print it for classroom use, homework assignments, or extra practice at home to help students master Grade 6 geometry concepts.
8. What types of questions are in this Grade 6 geometry worksheet?
This Grade 6 geometry worksheet includes a variety of question formats to reinforce learning. Students will find different activities such as:
- Fill in the Blanks: To test definitions of scalene, isosceles, and equilateral triangles.
- Matching Activities: To visually connect triangle diagrams with their correct classification.
- Identification Questions: To classify triangles based on given side lengths.
- Drawing Tasks: To apply knowledge by drawing the different types of triangles.
9. How can this worksheet help my child practice geometry concepts?
This worksheet helps children practise geometry concepts by focusing on the core skill of classifying triangles based on side lengths. The clear diagrams, varied activities, and structured practice allow students to build confidence in identifying equilateral, isosceles, and scalene triangles, strengthening their foundational geometry skills.
10. What is the difference between classifying triangles by sides and by angles?
The main difference lies in the property being measured. Classifying triangles by sides depends on the lengths of the sides, while classifying by angles depends on the measure of the internal angles.
- By Sides: Triangles are classified as scalene (no equal sides), isosceles (two equal sides), or equilateral (all three sides equal).
- By Angles: Triangles are classified as acute (all angles < 90°), right (one 90° angle), or obtuse (one angle > 90°).





















