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प्रश्न
- How many different shapes can you make by joining two squares? Draw them on the squared sheet given below. How long is the boundary of each shape?
- Try this activity with three squares also.
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उत्तर
- The shapes made by joining two squares are shown here :
There are four types of shapes that can be made by joining two squares. - Following types of shapes can be made by joining three squares.
Seven types of shapes can be made by joining three squares.
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संबंधित प्रश्न
Ganpat thanked Rahmat and started fencing his own field. But he needed to get more wire.
How long is the boundary of Ganpat’s field?
Chandu’s father is called the ‘young old man’ in his village. At 70 years of age, he is fully fit. Do you know his secret? He goes for a walk around the field every morning. Everyday he takes four rounds of Chandu’s field.
What is the total distance he covers?
4 × ______ = ______ m = ______ km
How much lace will be used in 3 such table cloths?
Find out the length of the boundary of these shapes. (Hint: You can use a thread)
Now count the squares to find out :
- How many squares are there in each shape?
- Which shape covers the least number of squares?
- Which shape covers the most number of squares?
A square has a boundary of 12 cm.
- From the corner of this square, a small square of side 1 cm is cut off. Will the boundary of B be less or more? Find its length.
- If you cut a 1 cm square to get shape C, what will be the length of the boundary of C?
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 |
 |
 |
| Square | New shape |
- Find the length of the boundary of square D.
- 8 squares of side 1 cm are cut out of the square D. Now it looks like shape E. What is the length of the boundary of shape E?
- The boundary of this
is ______ + ______ + ______ + ______
Can we also say that the boundary is 4 × 1 cm?
How will Neetu find out if the two gardens are equally big?
Look at the table in your classroom. Guess how many Math-Magic books you can place on it.
(Remember-The books should not overlap. Do not leave gaps between the books)
- Write your guess here.
- Now check if your guess was right. How many books could you place?
- What is the difference between your guess and the actual number of books?
- How many Math-Magic books can be covered with one sheet of newspaper?
- Try covering your Math-Magic book with half a sheet of newspaper.
- Can you cover your book with a smaller sheet?
- Find the smallest sheet which can cover your book. Check if your friend used a smaller sheet than you.
- Guess how many squares of one centimeter can fill this blue rectangle.
Write your guess here. - Check your guess by filling it with small squares.
