# Plane Shapes

A plane shape is a figure made up of straight or curved lines. Two straight lines where they meet is called the corner. The straight lines which form a plane shape are called its sides. Some basic shapes are given below.

These are called flat shapes or plane shapes.

These shapes can be drawn on a sheet of paper. These are called plane shapes or Two-Dimensional (2-D) Shapes.

Square

 A square has 4 sides and 4 corners.All sides are of equal length.

Rectangle

 A rectangle has 4 sides and 4 corners.The opposite sides are of equal length.

Triangle

 A triangle has 3 sides and 3 corners.The three sides of a triangle can be of same length or of different lengths.

Circle

 A circle has 1 curved side 0 corners.

Oval

 An circle has 1 curved side 0 corners.

Drawing Shapes:

Plane figures can be drawn on a paper.

These shapes can be the face of a solid. Let us see, how?

Take a book, place it on a sheet of paper. Trace around it with a pencil.

The shape you get is a rectangle.

A rectangle is the outline of a face of a cuboid.

Take a dice. Place it on a sheet of paper. Trace around its edges as shown in the picture.

The shape you get is a square.

Similarly,

Place a cube on a blank page of your notebook. Start moving the sharp end of a pencil along the base of the cube till you reach back to the starting point.

 Remove the cube.See what shape is formed. Oh! Yes it is a square.

Take a bangle. Place it on a sheet of paper. Trace around its edge as shown in the picture. The shape you get is a circle.

Take a square sheet of paper. Fold it from one corner as shown in the picture. Draw along the sides with a pencil.

Similarly, now look at the solid shape.

 Now look at this solid shape.Name this shape?Oh! Yes, it is a cylinder.
 By moving a sharp pencil along the base of the cylinder, what shape do you get?
 Oh! Yes, it is a circle.A circle has only one round edge.
 A circle can be formed by tracing the base of a cone also.

The shape you get is a triangle.

Questions and Answers on Plane Shapes:

1. Identify the following shapes and fill in the blanks.

 (i) (ii) (iii) (iv)

2. Count and colour the shapes.

 Shapes How many? Colour it. (i) Circles _____ Yellow (ii) Squares _____ Blue (iii) Rectangles _____ Pink (iv) Ovals _____ Black (v) Triangles _____ Red

3. Identify and tick (✔) the shapes of the following objects.

 (i) Cube/Sphere/Cone
 (ii) Cylinder/Cuboid/Sphere
 (iii) Cuboid/ Cylinder/Cube
 (iv) Sphere/Cube/Cone
 (v) Cones/Sphere/Cuboid
 (vi) Cylinder/Cone/Sphere

4. Complete the following sentences.

(i) A wheel is shaped like a __________ .

(ii) A pizza slice is like a __________ .

(iii) A shape with all four sides same is a __________ .

(iv) A red stop sign on the road is like a __________ .

(v) Pages of a book are like a __________ .

Its opposite sides are __________ .

It has corners __________ .

4. (i) circle

(ii) triangle

(iii) square

(iv) circle

(v) rectangle; same; four

5. Count and write the number of various shapes.

6. Name different shapes in this picture (as done for one).

7. Write the properties of each shape.

(i) Square

___________________________________________

____________________________________________

(ii) Rectangle

___________________________________________

____________________________________________

(iii) Triangle

___________________________________________

____________________________________________

(iv) Circle

___________________________________________

____________________________________________

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