CBSE Class 5 Maths: 2D Shapes Workbook

This workbook explores 2D shapes. It covers open and closed figures, naming polygons, counting sides and vertices, regular and irregular polygons, triangles by their sides and by their angles, the angle sum of a triangle, the six special quadrilaterals and their properties, diagonals, circles (centre, radius, diameter and chord), counting shapes inside figures, and shapes around us. It has 335 activities in 16 sections, arranged in four parts.

What your child will practise

• Open and Closed Figures – Open figures, closed figures and polygons
• Naming Polygons – Naming polygons by their number of sides
• Sides, Vertices and Angles – Counting sides, vertices and angles
• Regular and Irregular Polygons – Regular and irregular polygons
• Triangles by Their Sides – Equilateral, isosceles and scalene triangles
• Triangles by Their Angles – Acute-angled, right-angled and obtuse-angled triangles
• Angles of a Triangle – The three angles of a triangle add up to 180°
• Quadrilaterals – Square, rectangle, rhombus, parallelogram, trapezium and kite
• True or False: Shape Facts – True or false: properties of shapes
• Diagonals – Lines joining vertices that are not next to each other
• Circles: Centre, Radius and Diameter – Centre, radius, diameter and chord
• Counting and Combining Shapes – Counting triangles, squares and rectangles in figures
• Shapes Around Us – 2D shapes in everyday life
• Mixed Practice – A mix of every skill in this book
• Think! Puzzles & Challenges – Shape puzzles and challenges

Who it is for

CBSE Class 5 students (age about 10–11), and Class 6 children who need a refresher.

How to use it

Print the pages you need, or the whole book, on A4 paper. Short, regular sessions work best. Answers are at the back so you can check the work together.

Based on the CBSE / NCERT Class 5 (Grade 5) Mathematics curriculum. Instant PDF download, 59 pages.