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A is the area of a circle with radius r ...

A is the area of a circle with radius r units. Write the formula of area, making r as the subject.

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The correct Answer is:
`r=sqrt(A)/(11)` units
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PEARSON IIT JEE FOUNDATION-Formulae-Short Answer Type Question
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  13. A is the area of the rectangle with length l units and breadth b units...

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  14. A is the area of the square with side S units. Write the formula of ar...

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  15. If (a)/(b)=(b)/(c), then make c as the subject of the formula.

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  16. The height (h) of an equilateral triangle whose side is 's' is (sqrt(3...

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  17. The simple interest on a principal of Rs P at R% per annum for a perio...

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  18. If the area of an equilateral tirangle is A=12sqrt(3)cm^(2), then the ...

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  19. If x^(2)+y^(2)=r^(2), then x is equal to

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