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Question-84682




Question Number 84682 by Power last updated on 15/Mar/20
Commented by Power last updated on 15/Mar/20
find the painted area ?
$$\mathrm{find}\:\mathrm{the}\:\mathrm{painted}\:\mathrm{area}\:? \\ $$
Commented by mr W last updated on 15/Mar/20
((π4^2 )/4)−6×((π1^2 )/4)−1×1=((5π)/2)−1
$$\frac{\pi\mathrm{4}^{\mathrm{2}} }{\mathrm{4}}−\mathrm{6}×\frac{\pi\mathrm{1}^{\mathrm{2}} }{\mathrm{4}}−\mathrm{1}×\mathrm{1}=\frac{\mathrm{5}\pi}{\mathrm{2}}−\mathrm{1} \\ $$
Commented by Power last updated on 15/Mar/20
prove it sir please
$$\mathrm{prove}\:\mathrm{it}\:\mathrm{sir}\:\mathrm{please} \\ $$
Commented by mr W last updated on 15/Mar/20
Commented by Power last updated on 15/Mar/20
thanks
$$\mathrm{thanks} \\ $$

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