हिंदी

How much lace will be used in 3 such table cloths? - Mathematics

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प्रश्न

How much lace will be used in 3 such table cloths?

योग
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उत्तर

For 1 table cloth requirement of lace = 4m

Therefore, for 3 table cloth requirement of lace = 4m × 3 = 12m

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Fields and Fences
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 13: Fields and Fences - Exercises [पृष्ठ १५२]

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एनसीईआरटी Math - Magic [English] Class 4
अध्याय 13 Fields and Fences
Exercises | Q 6 | पृष्ठ १५२

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?


How much more wire will Ganpat need for his 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


Ganpat’s wife works in a tailor’s shop. She has to fix lace around a table cloth.

She bought a 100 metre roll of lace.

Look at the picture of the table cloth and tell how much lace is used for one table cloth.


Take a 20 centimetre long thread. Make different shapes by joining the ends. Place on the squared sheet on the next page. 

find Out :

  1. How many squares are there in each shape?
  2. Which is the biggest shape?
  3. Which is the smallest shape?
  4. How long is the boundary of each shape?

A square has a boundary of 12 cm.

  1. 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.
  2. If you cut a 1 cm square to get shape C, what will be the length of the boundary of C?
Square New shape

  1. Find the length of the boundary of square D.
  2. 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?
     
  3. 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)

  1. Write your guess here.
  2. Now check if your guess was right. How many books could you place?
  3. What is the difference between your guess and the actual number of books?

  1. How many Math-Magic books can be covered with one sheet of newspaper?
  2. Try covering your Math-Magic book with half a sheet of newspaper.
  3. Can you cover your book with a smaller sheet?
  4. Find the smallest sheet which can cover your book. Check if your friend used a smaller sheet than you.

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