A circular table top has a diameter of 1.4 m. What is its area? (Take π = 227)
- 1.54 m²
- 2.2 m²
- 4.4 m²
- 6.16 m²
Need a hint?
The area needs the radius. Halve 1.4 m first.
Worked answer
- Radius = 1.4 ÷ 2 = 0.7 m.
- Area = 22/7 × 0.7 × 0.7 = 22/7 × 0.49 = 1.54 m².
Answer: 1.54 m²
The mistake this question tests
Habit
Radius and diameter in circles
6.16 m² uses 1.4 m as the radius. The radius is 0.7 m.
How to fix it at home →Wrong answers children often give:
- 6.16 m² Radius and diameter in circles
- 4.4 m² Area and perimeter formulas
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