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प्रश्न
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?
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उत्तर
- The number of complete square in figure - A = 1
The number of complete square in figure - B = 2
The number of complete square in figure - C = 3
The number of complete square in figure - D = 2 - Figure A covers the least number of square which is 1.
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The figure C covers the most number of square which is 3.
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संबंधित प्रश्न
Rahmat needs to find the length of the boundary of the field.
Can you find it from this picture? See the length of each side written near it.
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?
How much more wire will Ganpat need for his field?
Here are pictures of some more fields. Find out which one has the longest boundary?
Boundary = ______ metre
Boundary = ______ metre
Boundary = ______ metre
Boundary = ______ metre
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?
How much lace will be left in the roll?
- 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?
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?
Now look for another table.
- Is this table bigger than the last table? Yes/No
- Make a guess how many Math-Magic books can be kept on this table.
- Check if your guess was correct.
How many Math-Magic books could you keep? - The difference between the sizes of the two tables is ______ books.
