Find the number of triangles in the given figure?
The simplest triangles are AKI, AIL, EKD, LFB, DJC, DKJ, KIJ, ILJ, JLB, BJC, DHC and BCG i.e. 12 in number.
The triangles composed of two components each are AKJ, ALJ, AKL, ADJ, AJB and DBC i.e. 6 in number.
The triangles composed of the three components each are ADC and ABC i.e. 2 in number.
There is only one triangle i.e. ADB composed of four components.
Thus, there are 12 + 6 + 2 + 1 = 21 triangles in the figure.
As we know that the mirror image always be opposite the original image across the given line. Given image will become opposite to the given line MN.As shown in given below .
According to given question figure ,
we can say that the mirror image always be opposite the original image across the given line. Given image will become opposite in mirror across the given line AB.So , correct figure will be option D .
According to given question figure ,
we can say that the mirror image always be opposite the original image across the given line. It will become opposite in mirror across the given line XY.So , option C is correct figure .
As per the given above question figure ,
Figure ( 4 ) of the answer figures is exactly the mirror image of the given original image . Thus , Given image will become opposite in mirror across the given line RS.Therefore , option D is correct figure .
As per the given above question figure ,
Figure ( 2 ) of the answer figures is exactly the mirror image of the given original image . Thus , Given image will become opposite in mirror across the given line MN.So , option B is correct figure .
Answer B
Answer B
Answer B
As we know that the mirror image always be opposite the original image across the given line. It will become opposite to the given line .As shown in given below .
Hence , option C is required answer .
As per the given above question figure ,
Figure ( 4 ) of the answer figures is exactly the mirror image of the given original image . Thus , Given image will become opposite in mirror across the given line XY.Therefore , option D is correct figure .
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