Counting of Figures

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Question
SSCCGLENRSN12045387

Find out the number of triangles in the figure given.

  • 6

  • 8

  • 10

  • 12

Solution

D.

12


Following are the possible triangles:
 ΔABC, ΔADC, ΔABD, ΔBDC, ΔBOC, ΔCOD, ΔAOB, ΔAOD, ΔAOE, ΔEOD, ΔDOF.


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Question
SSCCGLENRSN12045462

How many rectangles can you see in the figure?

  • 9

  • 8

  • 10

  • 7

Solution

A.

9

Question
SSCCGLENRSN12045363

How many squares are there in the square figure ABCD?

  • 16

  • 17

  • 26

  • 30

Solution

D.

30

Check no of squares in any row (.i.e. equal to 4),
Let's put a shortcut method
   (12 + 22 + 32 + 42 = 30)

Question
SSCCGLENRSN12045227

How many triangles are there in the given figure?
 

  • 5

  • 7

  • 8

  • 9

Solution

A.

5

There are following triangles in the given figure.

ABG, BGF, BFC, CFE, DCE
Hence, there are total five triangles in the given figure.

Question
SSCCGLENRSN12045330

How many triangles are there in the given figure?

  • 10

  • 16

  • 18

  • 19 or more

Solution

D.

19 or more


Required Triangles
increment ABH comma space increment HIF comma space increment FIB comma space increment HFB comma space increment HFG comma space increment BJF comma space increment DJE comma space increment BJD comma space increment JFE comma space increment BJC comma
increment DJC comma space increment BFD comma space increment BDE comma space increment DFE comma space increment EFB comma space increment EGH comma space increment EFG comma space increment JEG comma space increment HBE

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