BKSB Measurement and Area 2 â Questions and Answers
Question 1: A rectangular garden is 8.5 meters long and 4 meters wide. What is its area?
- 32 m²
- 34 m² (Correct answer)
- 36 m²
- 40 m²
Correct answer: 34 m²
Area of a rectangle = length à width = 8.5 à 4 = 34 m².
Question 2: How many millimeters are in 3.7 centimeters?
- 3.7 mm
- 37 mm (Correct answer)
- 370 mm
- 0.37 mm
Correct answer: 37 mm
1 cm = 10 mm, so 3.7 cm Ă 10 = 37 mm.
Question 3: A triangle has a base of 10 inches and a height of 6 inches. What is its area?
- 60 in²
- 30 in² (Correct answer)
- 16 in²
- 48 in²
Correct answer: 30 in²
Area of a triangle = ½ à base à height = ½ à 10 à 6 = 30 in².
Question 4: A room measures 12 feet by 15 feet. How many square yards of carpet are needed to cover it?
- 180 yd²
- 60 yd²
- 20 yd² (Correct answer)
- 45 yd²
Correct answer: 20 yd²
180 ft² á 9 (since 1 yd² = 9 ft²) = 20 yd².
Question 5: Which unit is most appropriate for measuring the distance between two cities?
- Millimeters
- Centimeters
- Meters
- Kilometers (Correct answer)
Correct answer: Kilometers
Kilometers are used for large distances such as between cities.
Question 6: A square tile has sides of 20 cm. What is its area in square meters?
- 4 m²
- 0.4 m²
- 0.04 m² (Correct answer)
- 400 m²
Correct answer: 0.04 m²
20 cm = 0.2 m, so area = 0.2 à 0.2 = 0.04 m².
Question 7: A rectangular field is 250 meters long and 80 meters wide. What is the perimeter?
- 330 m
- 660 m (Correct answer)
- 20,000 m
- 500 m
Correct answer: 660 m
Perimeter = 2 Ă (length + width) = 2 Ă (250 + 80) = 2 Ă 330 = 660 m.
BKSB Measurement and Area 2
A rectangular garden is 8.5 meters long and 4 meters wide.
What is its area?