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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.
How much wire did Rahmat give to Ganpat?
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
Take a 20 centimetre long thread. Make different shapes by joining the ends. Place on the squared sheet on the next page.
find Out :
- How many squares are there in each shape?
- Which is the biggest shape?
- Which is the smallest shape?
- How long is the boundary of each shape?
- 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.
A hockey held is 91 metres 40 cm long and 55 metres wide. How long is the boundary of the held?
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.
- How many small squares of size 1 cm are there in this big green square?
- Can you think of a faster way to know the total number of small squares without counting each.
- 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.
