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Question Number 88997 by jagoll last updated on 14/Apr/20

Commented by john santu last updated on 14/Apr/20

$$4R+2R\sqrt{2}=8\sqrt{2}$$$$R(2+\sqrt{2})=4\sqrt{2}$$$$R=\frac{4\sqrt{2}}{2+\sqrt{2}}\times \frac{2-\sqrt{2}}{2-\sqrt{2}}$$$$R=\frac{8\sqrt{2}-8}{4-2}=4\sqrt{2}-4dm$$

Commented by mr W last updated on 14/Apr/20

Commented by mr W last updated on 14/Apr/20

$$2R=\sqrt{2}(4-R)$$$$\Rightarrow R=\frac{4\sqrt{2}}{2+\sqrt{2}}=4(\sqrt{2}-1)$$

Commented by $@ty@m123 last updated on 14/Apr/20

$$Wonderful!!!$$

Commented by jagoll last updated on 15/Apr/20

$$waw.......veryafdoll$$

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