# NCERT Solutions for Class 6 Maths Chapter 5 Understanding Elementary Shapes

NCERT Solutions for Class 6 Maths Chapter 5 Understanding Elementary Shapes- All the shapes students see around them are formed using lines and curves. We can see edges, planes, corners, closed curves and open curves in our surroundings. We organize them into line, line segments, angles, circles triangles, and polygons. We find that they have different measures and sizes. In this chapter, we will try to develop some tools to compare their sizes. In this chapter, there are 45 questions in 9 exercises. The NCERT Solutions for Class 6 Maths Chapter 5 Understanding Elementary Shapes are solved and designed by our maths experts with respect to CBSE syllabus to help students in their preparation of CBSE final examination of class 6. These NCERT solutions clear students doubts regarding this chapter. The NCERT solutions for class 6 is the detailed solutions of questions given in the NCERT textbook.

This chapter deal with the development of tools to measure shapes like triangles, polygons, etc and their sizes. This is chapter is one of the most important chapter of this class as well as of the geometry part. So, to develop a grip on the topic students must pay attention to this chapter while studying. Important topics that we are going to discuss in NCERT Solutions for Class 6 Maths Chapter 5 Understanding Elementary Shapes are measuring line segments, angles – ‘Acute’, ‘Obtuse’ and ‘Reflex’, angles – ‘Right’ and ‘Straight’, measuring angles, perpendicular lines, classification of triangles for example naming triangles based on side and based on angles, quadrilaterals ( square, rectangle, parallelogram, rhombus, trapezium), polygons and 3D Shapes.

Important terms of Class 6 Maths Chapter 5 Understanding Elementary Shapes-

• Length- It is a distance between the endpoints of the line segment.
• Perpendicular lines- If the angle between two intersecting lines is 90-degree
• Classification of triangles based on their angles:
 Nature of angles in the triangle Name Each angle is acute Acute angled triangle One angle is obtuse Obtuse angled triangle One angle is a right angle Right-angled triangle

• Classification of triangles based on their sides:
 Nature of sides in the triangle Name All the three sides are of unequal length Scalene triangle Any two of the sides are of equal length Isosceles triangle All the three sides are of equal length Equilateral triangle

## Topics of NCERT Grade 6 Maths Chapter 5 Understanding Elementary Shapes-

5.1 Introduction

5.2 Measuring Line Segments

5.3 Angles – ‘Right’ and ‘Straight’

5.4  Angles – ‘Acute’, ‘Obtuse’ and ‘Reflex’

5.5 Measuring Angles

5.6 Perpendicular Lines

5.7 Classification of Triangles

5.9 Polygons

5.10 Three Dimensional Shapes

## NCERT Solutions for Class 6 Mathematics - Chapter-wise

 Chapters No. Chapters Name Chapter - 1 Knowing Our Numbers Chapter - 2 Whole Numbers Chapter - 3 Playing with Numbers Chapter - 4 Basic Geometrical Ideas Chapter - 6 Integers Chapter - 7 Fractions Chapter - 8 Decimals Chapter - 9 Data Handling Chapter -10 Mensuration Chapter -11 Algebra Chapter -12 Ratio and Proportion Chapter -13 Symmetry Chapter -14 Practical Geometry