Geometry

This chapter discusses the concept of line and angles. We will learn about the pairs of angles and the types of angles. It also describes the transversal line and the angles made by a transversal along with the properties of parallel lines.

This chapter describes the various types of triangles based on their sides and angles. It explains the median, altitude, exterior and interior angle of triangles. The properties of triangles and the angle sum property are also discussed here.

In this chapter, the property of congruency is discussed with the help of pictures. It briefs us on the congruency of line segments and triangles. We also study the necessary and sufficient conditions for two triangles to be congruent with examples.

Through this chapter, we will learn the construction of different triangles when the measurement of its sides is given. With the aid of examples, it describes the step-by-step construction of different types of triangle, including isosceles triangle.

Through this chapter, we will learn the definition of a quadrilateral. It describes the various properties of quadrilateral through the activity and examples. It also briefs us about the various types of quadrilateral and their properties.

This chapter explains the perimeter and area of various figures. We will learn the ways which are used to find the area and perimeter of a parallelogram, triangle and rhombus. It also covers the circumference of the circle.

In this chapter, the concepts related to 2D and 3D shapes and their visualization is explained in detail. We will learn about the nets of 3D solids. It also describes how to draw three-dimensional solids and to view the different sections of a solid.

This chapter helps us to identify the line of symmetry and rotational symmetry of simple geometrical figures. We will also learn to identify the angle of rotation and order of rotation in 2D figures with the help of several examples.