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Question Number 140276 by cherokeesay last updated on 06/May/21

Answered by mr W last updated on 06/May/21

Commented by mr W last updated on 06/May/21

$$\alpha =60°-45°=15°=\frac{\pi }{12}$$$$\frac{A}{2}=\frac{{10}^2}{2}\times \frac{\pi }{12}-\frac{5\times (\sqrt{{10}^2-5^2}-5)}{2}$$$$\Rightarrow A=\frac{25\pi }{3}-25(\sqrt{3}-1)$$

Commented by cherokeesay last updated on 06/May/21

$$verynice!$$$$thankyousir!$$

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