As shown in the diagram, the length of square $A B C D$ is $21\, cm .$ $\widehat{ A P C }$ is an arc of $\odot(B, BA )$ and $\widehat{A Q C}$ is an arc of $\odot( D , DA ) .$ Find the area of the shaded (ruled) portion. (in $cm^2$)
As shown in the diagram, the length of square $A B C D$ is $21\, cm .$ $\widehat{ A P C }$ is an arc of $\odot(B, BA )$ and $\widehat{A Q C}$ is an arc of $\odot( D , DA ) .$ Find the area of the shaded (ruled) portion. (in $cm^2$)
- A
$265$
- B
$186$
- C
$248$
- D
$252$
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