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Worksheet: Fields And Fences - 2 | Mathematics for Class 4: NCERT PDF Download

Q1: Choose the correct answer.


(i) Length of one side of a square is 6 cm. Then its perimeter is ______
(a) 
36 cm
(b) 12 cm
(c) 24 cm
Worksheet: Fields And Fences - 2 | Mathematics for Class 4: NCERT

(ii) Area of a rectangle is 36 sq cm and length is 9 cm. Find its breadth?
(a)
9 cm
(b) 6 cm
(c) 4 cm

(iii) The length of the boundary of a closed figure is called ______
(a) 
Volume
(b) Area
(c) Perimeter

(iv) Area of a rectangle 5 cm long and 3 cm wide is ______ sq cm.
(a) 
8
(b) 10
(c) 15
Worksheet: Fields And Fences - 2 | Mathematics for Class 4: NCERT

(v) Area of a square with side 3m is ______
(a)
12
(b) 9
(c) 6

Q2: Fill in the blanks.

(i) The perimeter of a triangle of sides 4m, 3m and 2m is ______.

(ii) The amount of surface enclosed within a closed figure is called ______.

(iii) Unit of area is ______.

(iv) The perimeter of a square of sides 5 cm is ______.

(v) A square has a boundary of 12 cm. What will be the length of each side?

Q3: Answer the following Questions.

(i) A square wall has a perimeter of 100 m. What is the side of the wall? Find its area?

(ii) A rectangular garden is 150m long and 50m wide. Find its Perimeter?

(iii) A square carom board has a perimeter of 420 cm. Find the length of each side?
Worksheet: Fields And Fences - 2 | Mathematics for Class 4: NCERT

(iv) Find the perimeter of a rectangle whose length and breadth are respectively 12 cm and 9 cm.

(v) A rectangular field is 48 m long and 20m broad. Find the cost of fencing the field at the rate of Rs 50 per metre?
Worksheet: Fields And Fences - 2 | Mathematics for Class 4: NCERT

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FAQs on Worksheet: Fields And Fences - 2 - Mathematics for Class 4: NCERT

1. What are the main factors to consider when planning a field and fence layout?
Ans. When planning a field and fence layout, key factors include the type of livestock or crops to be managed, the topography of the land, soil quality, and the purpose of the fence (e.g., containment, security, or boundary marking). Additionally, consider local regulations, the material and height of the fence, and maintenance requirements.
2. How can I determine the appropriate type of fence for my field?
Ans. To determine the appropriate type of fence, assess the specific needs of your field. For livestock, choose durable materials that are escape-proof, such as barbed wire or electric fencing. For crops, consider fencing that can deter wildlife, such as woven wire or stock fencing. Evaluate your budget and maintenance capabilities as well.
3. What is the best way to maintain a fence over time?
Ans. Regular maintenance of a fence includes periodic inspections for damage, tightening loose wires, replacing broken posts, and ensuring that gates operate smoothly. Cleaning the area around the fence helps prevent overgrowth that can damage it. It's also beneficial to treat wooden posts with preservatives to extend their lifespan.
4. How do I calculate the amount of fencing material needed for my field?
Ans. To calculate the amount of fencing material needed, measure the perimeter of the field by adding the lengths of all sides. For rectangular fields, use the formula: Perimeter = 2(length + width). Once you have the total perimeter, account for gates and corners, and add extra material for overlaps and splices.
5. What are the common mistakes to avoid when installing a fence?
Ans. Common mistakes when installing a fence include not checking property lines, failing to plan for gates and corners, using inadequate materials, and not digging post holes deep enough. Additionally, neglecting to account for the terrain, such as slopes or uneven ground, can lead to structural issues over time.
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