How many triangles are there in the following figures ?
A
19
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B
21
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C
25
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D
23
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Solution
The correct option is C 25 There is total 25 triangle in given figure: ADE, AEF, ADF, AGH, AHI, AGI, ABJ, AJC, ABC,DEG, GEH, EFI, EHI,GEI, GJI, GBJ, GJH, JHI, JIC,GEJ,EIJ,AEJ,AEI,AGJ, AJI.