Non Verbal Reasoning - Analytical Reasoning - Discussion

Discussion Forum : Analytical Reasoning - Section 1 (Q.No. 1)
1.

Find the number of triangles in the given figure.

8
10
12
14
Answer: Option
Explanation:

The figure may be labelled as shown.

The simplest triangles are AHG, AIG, AIB, JFE, CJE and CED i.e. 6 in number.

The triangles composed of two components each are ABG, CFE, ACJ and EGI i.e. 4 in number.

The triangles composed of three components each are ACE, AGE and CFD i.e. 3 in number.

There is only one triangle i.e. AHE composed of four components.

Therefore, There are 6 + 4 + 3 + 1 = 14 triangles in the given figure.

Discussion:
52 comments Page 2 of 6.

B. Surya kumar peetha said:   6 years ago
CFD is covered by 4 triangles. This changes the calculation by triangles covered by three components are 2 and four triangle components 2.
(1)

Namrata said:   7 years ago
Nice explanation @Priyanka.

But is it applicable on any other diagram? Like on square or rectangle?

Thriveni said:   7 years ago
Good explanation, thanks @Priyanka.

Rahul said:   7 years ago
Nice formula, thanks a lot @Priyanka.

RANJU said:   7 years ago
@Shalini.

I like your method. Thank you.

Lakshmi Narasimha said:   7 years ago
Total number of nodes +innernodes * 2.

Durvesh said:   7 years ago
There is a 15th triangle which is AHE which contains 4 components.

Sabya said:   7 years ago
Is there any standard formula for solving these types of questions?

Aizaz kakar said:   7 years ago
Just to concentrate the figure and count it's twice or thrice then you can solve it.

Anand said:   8 years ago
Please say any shortcut method to solve this problem.


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