Advertisements
Advertisements
Question
How will Neetu find out if the two gardens are equally big?
Advertisements
Solution
Neetu place a long rope along the boundary of garden 1 and measure the length of the boundary. Again Neetu place the rope along with the boundary of garden 2 and measure its length.
Finally, she saw that the length of the boundaries of both gardens are equal. Hence, both the gardens are equal.
APPEARS IN
RELATED QUESTIONS
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?
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?
- 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?
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.
- Valsamma runs faster than Usha. But still she loses the race. Can you guess why?
- Have you seen any race where runners start from different places – like in this picture? Guess why?
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.
- Which is the biggest leaf in this picture?

- 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. - Which is the biggest leaf?
- Which is the smallest leaf?
- 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.
Raghavan has a piece of land.
There are 4 houses on his land and in the middle there is a well. He wants to divide this land equally among his four children. Each should get one house and be able to use the well without entering the, other’s land. Can you help him divide the land?
Give different colours to each one’s share.

