1.

The circumference of a circle is 56 cm. Find the approximate area of square if the radius is two times of the side of a square.A. `18 cm^2`B. `32 cm^2`C. `25 cm^2`D. `20cm^2`

Answer» Correct Answer - D
ATQ,
`2pir=56 cm`
`rArr2xx22/7xxr=56 m`
`rArr r=(56xx7)/44=98/11 cm`
Side of a square `=98/(2xx11)=49/11 cm`
`:." Area of square"=("side")^2=(49/11)^2`
`=2401/121~~20 cm^2`


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