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प्रश्न
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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उत्तर
- The boundary of shape ‘B’ is equal to the boundary of shape ‘C’
The boundary of ‘B’ = 12 cm. - The boundary of shape ‘C’ will be equals to 14 cm.
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संबंधित प्रश्न
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Can you find it from this picture? See the length of each side written near it.
How much wire did Rahmat give to Ganpat?
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How long is the boundary of Ganpat’s field?
Ganpat’s wife works in a tailor’s shop. She has to fix lace around a table cloth.
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How much lace will be used in 3 such table cloths?
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Now count the squares to find out :
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- Which shape covers the least number of squares?
- Which shape covers the most number of squares?
- 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?
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(Remember-The books should not overlap. Do not leave gaps between the books)
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Now look for another table.
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- Check if your guess was correct.
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- 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.
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