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.
We already know about squares, rectangles, triangles, circles, ovals.
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.
Let us learn more about them.
Square
Rectangle
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
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.
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. |
Oh! Yes, it is a circle. A circle has only one round edge. |
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.
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 __________ .
Answer:
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
___________________________________________
____________________________________________
2nd Grade Math Practice
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