BKSB Shape, Space, and Measure 2 — Questions and Answers
Question 1: A rectangular room is 5 meters long and 3 meters wide. What is its perimeter?
- 15 m
- 16 m (Correct answer)
- 8 m
- 30 m
Correct answer: 16 m
Perimeter of a rectangle = 2 × (length + width) = 2 × (5 + 3) = 16 m.
Question 2: Which of the following shapes has exactly one pair of parallel sides?
- Rectangle
- Rhombus
- Trapezoid (Correct answer)
- Parallelogram
Correct answer: Trapezoid
A trapezoid has exactly one pair of parallel sides, unlike rectangles, rhombuses, and parallelograms which have two.
Question 3: A cube has a side length of 4 cm. What is its volume?
- 16 cm³
- 48 cm³
- 64 cm³ (Correct answer)
- 96 cm³
Correct answer: 64 cm³
Volume of a cube = side³ = 4³ = 64 cm³.
Question 4: How many degrees are in a right angle?
- 45°
- 90° (Correct answer)
- 180°
- 360°
Correct answer: 90°
A right angle measures exactly 90°, forming a perfect corner like the corner of a square.
Question 5: A circle has a radius of 7 cm. What is its diameter?
- 3.5 cm
- 7 cm
- 14 cm (Correct answer)
- 21 cm
Correct answer: 14 cm
Diameter = 2 × radius = 2 × 7 = 14 cm.
Question 6: What is the area of a triangle with a base of 10 cm and a height of 6 cm?
- 60 cm²
- 30 cm² (Correct answer)
- 16 cm²
- 120 cm²
Correct answer: 30 cm²
Area of a triangle = ½ × base × height = ½ × 10 × 6 = 30 cm².
Question 7: A box is 20 cm long, 15 cm wide, and 10 cm tall. What is its surface area?
- 1,300 cm² (Correct answer)
- 3,000 cm²
- 1,150 cm²
- 600 cm²
Correct answer: 1,300 cm²
Surface area = 2(lw + lh + wh) = 2(300 + 200 + 150) = 2 × 650 = 1,300 cm².
BKSB Shape, Space, and Measure 2
A rectangular room is 5 meters long and 3 meters wide.
What is its perimeter?