Answer D
From first figure to second figure one side is deleted from the design and two white circles come out of the main design while a black dot appears inside the main design.
From first figure to second figure the outer design is deleted and by joining the ends of inner design we get the second figure.
NA
From first figure to second figure the design rotates through 180° and three circles are added at its ends.
The simplest triangles are BFG, CGH, EFM, FMG, GMN, GHN, HNI, LMK, MNK and KNJ i.e. 10 in number.
The triangles composed of three components each are FAK and HKD i.e. 2 in number.
The triangles composed of four components each are BEN, CMI, GLJ and FHK i.e. 4 in number.
The triangles composed of eight components each are BAJ and OLD i.e. 2 in number.
Thus, there are 10 + 2 + 4 + 2 = 18 triangles in the given figure.
NA
There are 13 circles in the given figure. This is clear from the adjoining figure in which the centres of all the circles in the given figure have been numbered from 1 to 13.
NA
Except in figure (1), in all other figures there is one type of lining. In figure (1) there are both vertical and horizontal lines.
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