Category : 9th Class
The chapter Analytical Reasoning is based upon the counting of various geometrical figures in a given complex figure.
1. Count the number of triangles in the following figure.
(a) 16 (b) 22 (c) 28 (d) 32
Let us label the components of given triangle as given below:
Number of triangles made up of one component (triangle) each =12.
There names are : 1,1, 3,...., 12.
Number of triangles made up of two components each = 8.
Similarly, number of triangles made up of 3 components each = 4.
And number of triangles made up of 6 components each = 4.
Hence, number of all the triangles
= 12 + 8 + 4 + 4 = 28.
2. In the following question, find the number of straight lines in the given figure.
(a) 18 (b) 20 (c) 24 (d) None of these
You need to login to perform this action.
You will be redirected in 3 sec