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Tick the correct answer and justify: ABC and BDE are two equilateral triangle such that D is the mid point of BC.Ratio of the area of the triangles ABC and BDE are (A) `2:1,`(b)`1:2`(c)`4:1`(d)`1:4``"""""""`  Sides of two similar triangles are in the ratio 4 : 9. Areas of these triangles are in the ratio (A) 2:3                                     (B) 4:9 (C) 81:16                                 (D) 16:81

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