Class 4 Exam > Class 4 Notes > Mathematics for Class 4 > Worksheet Solutions: Perimeter and Area
Perimeter and Area Class 4 Worksheet Maths Chapter 9
Q1: Find the perimeter of each of the following figures:
(i) Perimeter of the triangle is ______ cm.
Ans: 14
(ii) Perimeter of the square is ______ cm.
Ans: 16
(iii) Perimeter of the square is ______ cm.
Ans: 28
(iv) Perimeter of the rectangle is ______ cm.
Ans: 26
(v) Perimeter of the triangle is ______ cm.
Ans: 19
(vi) The perimeter of the rectangle is ______ cm.
Ans: 20
Q2: In the following figures, assume that each small square is 1 sq cm. Count the squares and find the area:
(i) Area = ______ sq cm.
Ans: 18
(ii) Area = ______ sq cm.
Ans: 8
(iii) Area = ______ sq cm.
Ans: 8
(iv) Area = ______ sq cm.
Ans: 49
(v) Area = ______ sq cm.
Ans: 16
Q3: Find the area of the rectangle, whose:
(i) length = 5 m 8 cm, breadth = 3 m 75 cm
Ans: Convert both to meters:
Length = 5.08 m, Breadth = 3.75 m
Area = 5.08 × 3.75 = 19.05 m²
(ii) length = 4 m 50 cm, breadth = 2 m 7 cm
Ans: Convert both to meters:
Length = 4.50 m, Breadth = 2.07 m
Area = 4.50 × 2.07 = 9.315 m²
(iii) length = 1 m 5 cm, breadth = 90 cm
Ans: Convert length to meters:
Length = 1.05 m, Breadth = 0.90 m
Area = 1.05 × 0.90 = 0.945 m²
(iv) length = 125 m, breadth = 84 m
Ans: Area = 125 × 84 = 10,500 m²
(v) length = 80 cm, breadth = 24 cm
Ans: Convert to square centimeters:
Area = 80 × 24 = 1920 cm²
Q4: Find the perimeter of:
(i) The triangle whose sides are 8 cm, 9 cm, and 12 cm.
Ans: Perimeter = 8 + 9 + 12 = 29 cm
(ii) The square whose side is 14 cm.
Ans: Perimeter = 4(14) = 56 cm
Q5: Find the area of the following rectangles:
(i) 
Ans: Area of rectangle = l x b
= 10 x 15 = 150 cm
(ii)
Ans: Area of rectangle = l x b= 2 x 5 = 10 cm
Q6: Find the area of the square, whose:
(i) side = 256 dm
Ans: 256 x 256 = 65536 dm
(ii) side = 92 dm
Ans: 92 x 92 = 8464 dm
(iii) side = 18m
Ans: 18 x 18 = 324 m
(iv) side = 7 cm
Ans: 7 x 7 = 49 cm
(v) side = 20 cm
Ans: 20 x 20 = 400 cm
Q7: Find the area of the following squares:
Area of square = side x side
(i)
Ans: 20 x 20 = 400 cm²
(ii)
Ans: 6 x 6 = 36 cm²
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FAQs on Perimeter and Area Class 4 Worksheet Maths Chapter 9
| 1. What is the formula to calculate the perimeter of a rectangle? |  |
Ans. The formula to calculate the perimeter of a rectangle is P = 2(length + width), where "length" is the longer side and "width" is the shorter side.
| 2. How can I find the area of a triangle? | |
Ans. The area of a triangle can be found using the formula A = 1/2(base × height), where "base" is the length of the triangle's base and "height" is the perpendicular height from the base to the opposite vertex.
| 3. What is the difference between perimeter and area? | |
Ans. The perimeter is the total distance around a shape, while the area is the amount of space enclosed within that shape. Perimeter is measured in linear units (like meters), whereas area is measured in square units (like square meters).
| 4. How do I calculate the area of a circle? | |
Ans. The area of a circle can be calculated using the formula A = πr², where "r" is the radius of the circle and π (pi) is approximately 3.14.
| 5. Can I use the same formulas for irregular shapes? | |
Ans. For irregular shapes, you cannot directly use the same formulas as for regular shapes. You may need to divide the irregular shape into regular shapes, calculate the area of each, and then sum them up to get the total area. For the perimeter, you would add the lengths of all the sides.
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