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Question Number 49430 by behi83417@gmail.com last updated on 06/Dec/18

Commented by behi83417@gmail.com last updated on 07/Dec/18

DA^� E=𝛉,AD=r   .  there is two equilateral triangles,   inscribed in circle ,one vertex on   point:C and two anothers locate on  circle′s  premeter.[one side⊥BC]  find side of this triangels in terms  of :r ,𝛉 .  [C,is the midpoint of :ED and B,A,C  are collinear.]

DAE=θ,AD=r.thereistwoequilateraltriangles,inscribedincircle,onevertexonpoint:Candtwoanotherslocateoncirclespremeter.[onesideBC]findsideofthistriangelsintermsof:r,θ.[C,isthemidpointof:EDandB,A,Carecollinear.]

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