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Ashish Kumar Singh

· started a discussion

· 1 Months ago

Formula (Question: 186220.0 )

is there any shortcut formula for counting this type of figure?

Question:
How many triangles are there in this figure ?


Options:
A) 18
B) 13
C) 9
D) None of these
Solution:
Ans: (a)


Triangles are:  ABC,ABD,ADC,BEG,BGD,DGH,DEB,DCI,DHI,AHC,DHC,ABH,BHD,ADF,ADE,BHC,CFI and FDC

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

There is no shortcut Because different problem have different shape. In this question we observe the image, if the image and there lines are symmetry we can calculate the figure in one side and double it then calculate whole shapes.

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