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Are the exterior angles formed at each vertex of a triangle equal?

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NAND LAL PUBLICATION-THE TRIANGLE AND ITS PROPERTIES-Think, Discus and Write
  1. Can you think of a triangle in which two altitudes of the triangle are...

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  2. Can the altitude and median be same for a triangle?

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  3. Exterior angles can be formed for a triangle in many ways. Three of th...

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  4. Are the exterior angles formed at each vertex of a triangle equal?

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  5. What can you say about the sum of an exterior angle of a triangle and ...

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  6. What can you say about each of the interior opposite angles, when the ...

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  7. What can you say about each of the interior opposite angles, when the ...

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  8. What can you say about each of the interior opposite angles, when the ...

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  9. Can the exterior angle of a triangle be a straight angle?

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  10. Can you have a triangle with two right angles?

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  11. Can you have a triangle with two obtuse angles?

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  12. Can you have a triangle with two acute angles?

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  13. Can you have a triangle with all the three angles greater than 60^@?

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  14. Can you have a triangle with all the angles equal to 60^@?

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  15. Can you have a triangle with all the three angles less than 60^@?

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  16. Is the sum of any two angles of a triangle always greater than the thi...

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  17. Which is the longest side in the triangle PQR, right-angled at P?

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  18. Which is the longest side in the triangle ABC, right-angled at B?

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  19. Which is the longest side of a right triangle?

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  20. ‘The diagonal of a rectangle produce by itself the same area as produc...

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