Similar Figures


 
 
Concept Explanation
 

Similar Figures

Similar figures:

Definition:    Two polygons having the same number of sides are said to be similar, if

(i) their corresponding angles are equal; and

(ii) their corresponding sides are in the same ratio (proportional).

Corollary 

  • All equilateral triangles are similar.
  • All squares are similar.
  • All regular polygons having the same number of sides are similar.
  • All circles are similar.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following statements are false?

    1. All equilateral triangles are similar.

    2. All squares are similar.

    3. All regular polygons having the same number of sides are not similar.

    4. All circles are not similar.

    Right Option : C
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    Explanation
    Question : 2

    If these two triangles are similar, then the relation between their sides are?

    Right Option : D
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    Explanation
    Question : 3

    (i)               (ii)            (iii)        (iv)

    Which of the above figures are similar?

    Right Option : C
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    Explanation
     
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