Advertisements
Advertisements
प्रश्न
Here are pictures of some more fields. Find out which one has the longest boundary?
Boundary = ______ metre
Boundary = ______ metre
Boundary = ______ metre
Boundary = ______ metre
Advertisements
उत्तर
- Length of boundary = 15 metre + 6 metre + 15 metre + 24 metre
= 60 metre - Boundary = 9 metre + 6 metre + 3 metre + 6 metre + 6 metre + 12 metre
= 42 metre - Boundary = 9 metre + 6 metre + 3 metre + 6 metre + 6 metre
+ 12 metre
= 42 metre - Boundary = 15 metre + 15 metre + 9 metre + 15 metre + 15 metre + 9 metre
= 78 metre
Therefore, field (d) has the longest boundary.
APPEARS IN
संबंधित प्रश्न
Ganpat thanked Rahmat and started fencing his own field. But he needed to get more wire.
How long is the boundary of Ganpat’s field?
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.
How much lace will be used in 3 such table cloths?
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?
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?
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)
- Write your guess here.
- Now check if your guess was right. How many books could you place?
- What is the difference between your guess and the actual number of books?
- 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.
