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 2 of 4.
Azhar said:
1 decade ago
By using count only, we can find out the answers for this type of problems.
(1)
Karthik said:
9 years ago
How this way is possible?
No of nodes + 2 * No of inner nodes.
Ca anyone explain it?
No of nodes + 2 * No of inner nodes.
Ca anyone explain it?
Sharad Bhatta said:
7 years ago
I don't understand the concept of the triangle components.
Please, anybody, give me some ideas.
Please, anybody, give me some ideas.
Ritika said:
7 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.
Akter ali said:
7 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.
Anonymus said:
8 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.
Pratham Verma said:
8 years ago
Count by nodes 2Rupesh.
Jitesh said:
9 years ago
Please anyone tell me the Short trick for solving the problem.
Jaisun said:
9 years ago
Will the formula is given above be applicable for all triangle based sums? Please tell me, I need help.
Sri said:
1 decade ago
Is there any shortcut for counting number of triangle?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers