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Exterior angles can be formed for a tria...

Exterior angles can be formed for a triangle in many ways. Three of them are shown here

There are three more ways of getting exterior angles. Try to produce those rough sketches.

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Exterior angles can be formed for a triangle in many ways. Three of them are shown here (fig. 6.10)

If the sides of a triangle are produced in order, then the sum of the three exterior angles so formed is

State whether true or false Sum of the three exterior angles of a triangle is 180^(@)

The exterior angles,bounded obtained on producing of a triangle of both ways are 104^@ and 136^@ . Find the angles of the triangle.

If the base of an isosceles triangle is produced both ways, show that the exterior angles so formed are equal.

If the base of an isosceles triangle is produced both ways, show that the exterior angles so formed are equal.

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

PSEB-THE TRIANGLE AND ITS PROPERTIES-EXAMPLE
  1. Draw rough sketches for the following: In triangleXYZ,YL is an altit...

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  2. Verify by drawing a diagram if the median and altitude of an isosceles...

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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. Find angle x in Fig.

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

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

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  11. The exterior angle of a triangle is of measure 70^@ and one of its int...

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  12. The two interior opposite angles of an exterior angles of a triangle a...

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  13. Is something wrong in this diagram? Comment.

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  14. Find the value of the unknown exterior angle x in the following diagra...

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  15. Find the value of the unknown exterior angle x in the following diagra...

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  16. Find the value of the unknown exterior angle x in the following diagra...

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  17. Find the value of the unknown exterior angle x in the following diagra...

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  18. Find the value of the unknown exterior angle x in the following diagra...

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  19. Find the value of the unknown exterior angle x in the following diagra...

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  20. Find the value of the unknown interior angle x in the following figure...

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