1st Class Mental Ability Shapes Geometrical Shapes

Geometrical Shapes

Category : 1st Class

 

OBJECTIVES

 

 

  • Students will know the properties of different 2D and 3D shapes.
  • Students will recognise difference between 2D and 3D shapes,
  • Students will learn how to move a shape around, enlarge it, and rotate if without it being changed in shape.

 

INTRODUCTION

Geometry is all about shapes and their properties. Geometrical shapes consists of points, lines, planes, square etc.

 

 

SHAPES AND THEIR NAMES

 

S. no.

2D Geometrical Shapes

3D Geometrical Shapes

1.

2.

3.

4.

5.

     

LINES

 

Slanting Lines                 =

Vertical Lines                 =

Horizontal Lines =

Curved Lines                  =

All slanting, vertical and horizontal lines are straight lines.

 

Examples:

 

Type - 1: Identify Shapes

 

                  1.            Which one of the following is a square?

(a)                                    (b)  

(c)                                       (d)  

 

Ans.     (b) A square has four equal sides.

 

Type - 2: Count Sides

 

                2.            How many corners does this shape have?

                       

(a) 4                                          (b) 2            

(c) 5                                          (d) 3

 

Ans.     (d) A triangle has three sides.

                    

 

Type - 3: Similar Shapes

 

                 3.            Which shape is similar to the group of three given below?

              

            (a)                                   (b)  

            (c)                                   (d)  

 

Ans.     (b) Option (b) is similar to the group of three figures. So, option (b) is the correct answer.

 

Type - 4: Hidden Shapes

 

                    4.            In which of the following figures is the shape  hidden?

(a)                               (b)  

(c)                                 (d)  

 

Ans.     (c) Option (c) has the exact hidden shape.

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