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The radius of a circle is 2.12 metre. It...

The radius of a circle is 2.12 metre. Its area according to the rule of significant figures is

A

`4.5126 cm^2`

B

`4.521 cm^2`

C

`4.52 cm^2`

D

`4.5 cm^2`

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The correct Answer is:
D
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AAKASH SERIES-UNITS AND MEASUREMENT-EXERCISE - II
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  7. Which of the following numbers has least number of significant figures...

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  8. The number of significant figures in 0.0006032 is

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  9. State the numberof significant figures in the 6.320 J

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  10. The radius of a circle is 2.12 metre. Its area according to the rule o...

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  11. The number of significant figures in the numbers 4.8000xx10^(4) and 48...

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  12. The mass of a block is 87.2 g and its volume is 25 cm^(3). What is its...

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  13. The length of a rod is measured by different instruments. Of the follo...

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  14. 2.34 is obtained by rounding of the number

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  15. When 0.0003125 is reduced to 3 significant figures its value is

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  16. Find the value of 2.2 + 4.08 + 3.125 + 6.3755.

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  17. 9765 div 14.39 = 678.59625. This quotient on rounding off to two signi...

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  18. The value of 124.2 - 52.487 with due regard to significant places is

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  19. The value of 42 xx 0.041 with due regard to significant figures is

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  20. sqrt(58.97) =

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