NAPLAN Numeracy Measurement and Geometry — Questions and Answers
Question 1: A rectangle is 8 cm long and 3 cm wide. What is its area?
- 22 cm²
- 16 cm²
- 24 cm² (Correct answer)
- 11 cm²
Correct answer: 24 cm²
Area of a rectangle = length × width = 8 × 3 = 24 cm². Area is a core NAPLAN measurement skill.
Question 2: How many sides does a hexagon have?
- 6 (Correct answer)
- 8
- 5
- 7
Correct answer: 6
A hexagon has six sides. Naming 2D shapes by their number of sides is part of the Geometry strand.
Question 3: What is the perimeter of a square with sides of 7 cm?
- 49 cm
- 28 cm (Correct answer)
- 21 cm
- 14 cm
Correct answer: 28 cm
Perimeter is the total distance around: 4 × 7 = 28 cm. (49 cm² would be the area.)
Question 4: How many millilitres are in 2 litres?
- 20 mL
- 200 mL
- 2,000 mL (Correct answer)
- 20,000 mL
Correct answer: 2,000 mL
There are 1,000 millilitres in a litre, so 2 litres = 2,000 mL. Converting metric units is tested in NAPLAN.
Question 5: A clock shows 3:45. How many minutes until 4:00?
- 10 minutes
- 20 minutes
- 25 minutes
- 15 minutes (Correct answer)
Correct answer: 15 minutes
From 3:45 to 4:00 is 15 minutes. Reading and calculating time is a NAPLAN measurement skill.
Question 6: Which 3D shape has 6 square faces?
- Cylinder
- Sphere
- Cube (Correct answer)
- Cone
Correct answer: Cube
A cube has 6 equal square faces. Recognising properties of 3D objects is part of Geometry.
Question 7: An angle that is exactly 90 degrees is called a:
- Right angle (Correct answer)
- Straight angle
- Obtuse angle
- Acute angle
Correct answer: Right angle
A 90-degree angle is a right angle. Acute angles are smaller and obtuse angles are larger. Angles are assessed in NAPLAN.
Question 8: A water tank holds 5 litres. If 1,500 mL is used, how much water is left?
- 3,000 mL
- 2,500 mL
- 3,500 mL (Correct answer)
- 4,500 mL
Correct answer: 3,500 mL
5 litres = 5,000 mL. Subtract: 5,000 − 1,500 = 3,500 mL remaining. This combines unit conversion with subtraction.
NAPLAN Numeracy Measurement and Geometry
A rectangle is 8 cm long and 3 cm wide.
What is its area?