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प्रश्न
The radius of the circle is 3.12 m. Calculate the area of the circle with regard to significant figures.
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उत्तर
Given:
radius: 3.12 m (Three significant figures)
Solution:
Area of the circle = πr2 = 3.14 × (3.12 m)2 = 30.566
If the result is rounded off into three significant figure, area of the circle = 30.6 m2
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