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The least angle of rotation of a regular...

The least angle of rotation of a regular pentagon

A

`72^@`

B

`90^@`

C

`180^@`

D

`360^@`

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The correct Answer is:
A
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MTG IIT JEE FOUNDATION-SYMMETRY-Exercise (Multiple Choice Questions)
  1. Which of the following has no line of symmetry?

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  2. The figure which has two lines of symmetry and rotational symmetry of ...

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  3. The order of rotational symmetry of a circle is

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  4. The least angle of rotation of a regular pentagon

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  5. The order of rotational symmetry of regular octagon is

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  6. Which squares should be shaded to make the given figure symmetric?

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  7. Which of the following does not have a line of symmetry?

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  8. What is the least number of squares that must be added so that the lin...

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  9. What is the least number of squares that must be added so that the lin...

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  10. What is the least number of squares that must be added so that the lin...

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  11. Which of the following have both line symmetry and rotational symmetry...

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  12. Which of the following is incorrect?

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  13. Angle of rotation of an equilateral triangle is

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  14. Order of rotation of a regular pentagon is

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  15. Which of the following letters does not have reflection symmetry about...

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  16. Which of the following figures has 45^@ as angle of rotation?

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  17. The order of rotation of given figure is

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  18. Which of the following letters has rotational symmetry of order more t...

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  19. A figure has angle of rotation of 30^@. Its order of rotation is

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  20. A figure has a rotational symmetry of order more than 1, the angle of ...

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