The chapter **“Geometrical Shapes” **is **Chapter 5** from **Merry Math III **for students of** Class 3rd** of **JKBOSE**. In a previous post, you read about **Time Goes On Answers ****Page No 65 to Page No 70.** The particular post is about **Geometrical Shapes Page No 71 to Page No 76** Let’s get started:

**Geometrical Shapes Page No 71 to Page No 76**

**Basic Shapes**

When we look around us, we see a variety of shapes in objects. Some of the objects are shaped like :

When we look at the faces of these shapes, we find that some are flat and some are curved.

All the faces of a cuboid or a cube are flat. With the help of a flat face of the above shapes, we can draw, on a piece of paper, the following 2-dimensional shapes, called basic shapes.

These basic shapes are available and can be seen both inside and outside the school.

**Description of Shapes**

Before children are asked to select appropriate objects and draw basic shapes using objects, it is necessary that children know the description of these shapes.

It is a square which has four equal sides.

It is a rectangle whose opposite sides are of equal lengths.

It is a triangle which has three sides.

It is a circle.

**Straight and Curved Lines**

By moving a pencil along an edge of a die, a match-box, a set-square, a ruler, we get a straight line. Children should be asked to move their pencils along the edges of cuboidal objects. Similarly, by moving a pencil along a curved edge of a tin, a carom-coin, a rupee coin, etc., we get a curved line. Children should be asked to move their pencils along a curved edge of cylindrical or conical objects.

Note: At this stage, there is no need to make any distinction between a straight line and a line-segment.

Recognition of basic shapes

In previous class you have studied about four basic geometrical shapes, namely a square, a rectangle, a triangle and a circle.

**Activity 1**

**Page No. 75 – 76 Answers.**

**Q.1. Colour the following shapes in the pictures as indicated:**

Sol.

**Q.2. In the picture, colour:**

**Q.3. In the picture, count the number of each given shape and write in the box:**

Sol.

**Description of basic shapes **

**Square**

This is a square It has four sides and four corners. Side All its sides are of the same length. corner square This shape can be obtained when we put a die on a piece of paper and move a pencil along the edges of the bottom face:

**Rectangle**

This is a rectangle. It has four sides and four corners. Its opposite sides are of the same length. Corner Keeping a match on a piece of paper, we can obtain a rectangle if we move all along the edges of the bottom face.

**Triangle**

This is a triangle

It has three sides and three vertices.

The three sides of a triangle may or may not be of the same length.

The following figures are also triangles.

**Circle**

This is a circle

It has no corners.

This shape can be traced with a bangle, a one-rupee coin, a carom coin, etc.

That’s all about **Geometrical Shapes Page No 71 to Page No 76.** Hope it has helped. Do share your views about this post in the comment section below.

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