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Find the number of sides in a polygon if...

Find the number of sides in a polygon if the sum of its interior angles is :
(i) `900^@`
(ii) `1620^@`
(iii) `16` right angles

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The correct Answer is:
(i) 7 (ii) 11 (iii) 10
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ICSE-UNDERSTANDING SHAPES-Exercise 16A
  1. State which of the following are polygons: If the given figure is a ...

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  2. State which of the following are polygons: If the given figure is a ...

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  3. State which of the following are polygons: If the given figure is...

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  4. State which of the following are polygons: If the given figure is...

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  5. State which of the following are polygons: If the given figure is...

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  6. Calculate the sum of angles of a polygon with : (i) 10 sides (ii) ...

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  7. Find the number of sides in a polygon if the sum of its interior angle...

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  8. Is it possible to have a polygon, whose sum of interior angles is : ...

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  9. (i) If all the angles of a hexagon are equal, find the measure of each...

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  10. Find the sum of exterior angles obtained on producing, in order, the s...

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  11. The sides of a hexagon are produced in order. If the measures of exter...

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  12. The interior angles of a pentagon are in the ratio 4:5:6:7:5. Find eac...

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  13. Two angles of a hexagon are 120^@ and 160^@. If the remaining four ang...

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  14. The figure, given below, shows a pentagon ABCDE with sides AB and ED p...

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  15. Two angles of a polygon are right angles and the remaining are 120^@ e...

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  16. In a hexagon, ABCDEF, side AB is parallel to side FE and angleB : angl...

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  17. The angle of a hexagon are x+10^@, 2x+20^@, 2x-20^@, 3x-50^@, x+40^@ a...

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  18. In a pentagon, two angles are 40^@ and 60^@ and the rest are in the ra...

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