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Question Number 147229 by Tawa11 last updated on 19/Jul/21

Answered by Olaf_Thorendsen last updated on 19/Jul/21

$$2\times ({42}^2-\frac{1}{4}\times \pi \times {42}^2)=882(4-\pi )$$

Commented by Tawa11 last updated on 19/Jul/21

$$\mathrm{Thanks}\mathrm{sir},\mathrm{i}\mathrm{appreciate}.$$

Answered by nimnim last updated on 19/Jul/21

$$a=42\Rightarrow r=21\sqrt{2}$$$$Areaofshadedregion=2(a^2-\frac{1}{4}\pi r^2)$$$$=2\times {42}^2-\frac{1}{2}\times \frac{22}{7}\times 21\sqrt{2}\times 21\sqrt{2}$$$$=3528-1386=2142{cm}^2.$$

Commented by Rasheed.Sindhi last updated on 19/Jul/21

$$a=r=42$$

Commented by nimnim last updated on 19/Jul/21

$$sorry,Imiscalculated..$$

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