English

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

Advertisements
Advertisements

Question

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?
Answer in Brief

Solution

  1. In figure A there are 14 complete squares
    In figure B there are 4 complete squares In figure C there are 15 complete squares In figure D there are 10 complete squares.
  2. Figure ‘C’ is the biggest shape.
  3. Figure ‘B’ is the smallest shape.
  4. Measure the boundary of each shape by placing thread along the boundary of each shape.

shaalaa.com
Fields and Fences
  Is there an error in this question or solution?
Chapter 13: Fields and Fences - Exercises [Page 153]

APPEARS IN

NCERT Math - Magic [English] Class 4
Chapter 13 Fields and Fences
Exercises | Q 2. | Page 153

RELATED QUESTIONS

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


How much lace will be left in the roll?


  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?

A hockey held is 91 metres 40 cm long and 55 metres wide. How long is the boundary of the held?


Usha and Valsamma are running a race. Usha is running on the inner circle. Valsamma is running on the outer circle.

  1. Valsamma runs faster than Usha. But still she loses the race. Can you guess why?
  2. Have you seen any race where runners start from different places – like in this picture? Guess why?

  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.

  1. Which is the biggest leaf in this picture?
  2. Collect some leaves from the
    garden. Place each of them here on this squared sheet. Trace out their edges and check how many squares there are in each leaf.
  3. Which is the biggest leaf?
  4. Which is the smallest leaf?

  1. How many small squares of size 1 cm are there in this big green square?


  2. Can you think of a faster way to know the total number of small squares without counting each.

Look at the picture. Can you divide it into 4 equal pieces? Each piece should have the same number of squares.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×