2nd Class Mental Ability Shapes Geometrical Shapes

OBJECTIVES

·         Students will know the properties of different 2D and 3D shapes.

·         Students will recognize difference between 2D and 3D shapes.

·         Students will learn how to move a shape around, enlarge it, rotate it without it being change in shape.

INTRODUCTION

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

SHAPES AND THEIR NAMES

2D Geometrical Shapes

3D Geometrical Shapes

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)

Explanation:

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)

Explanation:

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)

Explanation:

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 t hidden?

(a)                             (b)    

(c)                                (d)

Ans.     (c)

Explanation:

Option (c) has the exact hidden shape.