Non Verbal Reasoning - Analytical Reasoning - Discussion
Discussion Forum : Analytical Reasoning - Section 1 (Q.No. 4)
4.
Find the number of triangles in the given figure.
Answer: Option
Explanation:
The figure may be labelled as shown.
The simplest triangles are AHB, GHI, BJC, GFE, GIE, IJE, CEJ and CDE i.e. 8 in number.
The triangles composed of two components each are HEG, BEC, HBE, JGE and ICE i.e. 5 in number.
The triangles composed of three components each are FHE, GCE and BED i.e. 3 in number.
There is only one triangle i.e. AGC composed of four components.
There is only one triangle i.e. AFD composed of nine components.
Thus, there are 8 + 5 + 3 + 1 + 1 = 18 triangles in the given figure.
Discussion:
32 comments Page 1 of 4.
Anonymus said:
7 years ago
The simplest triangles are AHB, GHI, BJC, GFE, GIE, IJE, CEJ and CDE which equals 8 in number.
The triangles composed of two components each are HEG, BEC, HBE, JGE and ICE = 5 in number.
The triangles composed of three components each are FHE, GCE and BED which are 3 in number.
There is only one triangle i.e. AGC composed of four components.
There is only one triangle i.e. AFD composed of nine components(sides of triangles.
Thus, there are 8 + 5 + 3 + 1 + 1 = 18 triangles in the given figure.
The triangles composed of two components each are HEG, BEC, HBE, JGE and ICE = 5 in number.
The triangles composed of three components each are FHE, GCE and BED which are 3 in number.
There is only one triangle i.e. AGC composed of four components.
There is only one triangle i.e. AFD composed of nine components(sides of triangles.
Thus, there are 8 + 5 + 3 + 1 + 1 = 18 triangles in the given figure.
Shashikant kumar said:
9 years ago
The figure shows a triangle with many lines. If the number of internal lines from vertex E=4, and the number of internal lines parallel to base is 2, then [4 X 2 X (2+1)]/2 = 12 and then add the rest small triangle at side and the main large triangle, you will get 18.
Ritika said:
6 years ago
I don't think so, that two components forming with 4 letters as HBE &BEC both are two components triangle but HBE made with 5 letters and BEC made with 4 letters.
Ishan said:
1 decade ago
Is there any technique available to solve this problem using permutation and combination method?if its there then such type of problem can be easily solve.
Akter ali said:
6 years ago
The simple triangle means forming with 3 letters.
Two components forming with 4 letters.
Three components forming with 5 letters.
Two components forming with 4 letters.
Three components forming with 5 letters.
Jaisun said:
9 years ago
Will the formula is given above be applicable for all triangle based sums? Please tell me, I need help.
Prathap said:
1 decade ago
These kind of problems are a kind of dynamic ones hence dealing with formulae can't happen at ease.
Sharad Bhatta said:
6 years ago
I don't understand the concept of the triangle components.
Please, anybody, give me some ideas.
Please, anybody, give me some ideas.
Mansi Sahu said:
7 years ago
I don't understand the proper meaning of components, please anybody can explain me clearly?
(1)
Balaganesh akasapu said:
10 years ago
Fortunately yes, we can use the concept of combinations to crack the problem with no time.
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