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  • Question
  • Find the number of triangles in the given figure.

    Find the number of triangles in the given figure. 16 18 19 21 The figure may be labelled as shown. T


  • Options
  • A. 16
  • B. 18
  • C. 19
  • D. 21

  • Correct Answer
  • 21 

    Explanation
    The figure may be labelled as shown.

    Find the number of triangles in the given figure. 16 18 19 21 The figure may be labelled as shown. T

    The simplest triangles are EFH, BIC, GHJ, GIJ, EKD and CKD i.e. 6 in number.

    The triangles composed of two components each are ABJ, AFJ, GCK, GEK, CED arid GHI i.e. 6 in number.

    The triangles composed of three components each are GCD, GED, DJB and DJF i.e. 4 in number.

    The triangles composed of four components each are ABF and GCE i.e. 2 in number.

    The triangles composed of five components each are ABD and AFD i.e. 2 in number.

    There is only one triangle i.e. FBD composed of six components.

    Total number of triangles in the figure = 6 + 6 + 4 + 2 + 2 + 1 = 21.


    More questions

    • 1. Choose the alternative which is closely resembles the water-image of the given combination.

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 2. 
      Identify the two figures from the given figures which are identical:

    • Options
    • A. 1 - 3
    • B. 4 - 6
    • C. 2 - 4
    • D. 3 - 5
    • Discuss
    • 3. 
      Which answer figure will complete the pattern in the question figure?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 4. Select a suitable figure from the Answer Figures that would replace the question mark (?).

      Problem Figures:                            Answer Figures:
          (A)     (B)      (C)     (D)                  (1)      (2)      (3)      (4)      (5)


    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • E. 5
    • Discuss
    • 5. Find the number of triangles in the given figure.


    • Options
    • A. 11
    • B. 13
    • C. 15
    • D. 17
    • Discuss
    • 6. Select a suitable figure from the Answer Figures that would replace the question mark (?).

      Problem Figures:                            Answer Figures:
          (A)     (B)      (C)     (D)                  (1)      (2)      (3)      (4)      (5)


    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • E. 5
    • Discuss
    • 7. Find the missig figure of the series from the given responses:

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 8. Choose the correct mirror image of the given figure (X) from amongst the four alternatives.

            (X)                 (1)          (2)         (3)         (4)


    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 9. 
      Four corners of a rectangular shaded paper are folded as shown in the figure. Find out from the alternative answers how the folded figure would look.

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 10. 
      A square sheet of paper is folded and punched as shown below. How will it look when opened?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss


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