Solution
The different triangles in the figure ACG are CBD, BED, DEF, DFG, ABE, AFE, ABD, AFD, ACD, AGD, ACG
$$\Rightarrow$$ Number of triangles in figure ACG = 11
The figure HIJ is similar to figure ACG.
$$\Rightarrow$$ Number of triangles in figure HIJ = Number of triangles in figure ACG = 11
$$\therefore\ $$Number of triangles in the given figure = 11 + 11 = 22
Hence, the correct answer is Option A
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