Area of a circle is 154 m2. Find out the perimeter of circle?
1. 14 cm
2. 44 m2
3. 44 m
4. 7 m
1. 14 cm
2. 44 m2
3. 44 m
4. 7 m
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Correct Answer – Option 3 : 44 m
Given:
Area of circle = 154 m2
Formula used:
Area of circle = πr2
Perimeter of circle = 2πr
Calculation:
πr2 = 154 m2
⇒ (22/7) × r2 = 154 m2
⇒ r2 = 7 × 7
⇒ r = 7 m
Perimeter of circle = 2 × (22/7) × 7 m
⇒ 44 m
∴ The perimeter of circle is 44 m