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If each angle of a triangle is less than...

If each angle of a triangle is less than the sum and other two, show that of the triangle is acute angle.

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MODERN PUBLICATION-LINES AND ANGLES-EXERCISE
  1. The sum of two angles of a triangle is 116^@ and difference is 24^@. F...

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  2. In a right angled triangle one of the acute angle measures 53^@, find ...

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  3. If each angle of a triangle is less than the sum and other two, show t...

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  4. The exterior angles,bounded obtained on producing of a triangle of bot...

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  5. In the fig side BC of triangleABC is produced to angleACD=128^@ and an...

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  6. Calculate the value of x in each of the following figures

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  7. Calculate the value of x in each of the following figures

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  8. Calculate the value of x in each of the following figures

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  9. Calculate the value of x in each of the following figures

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  10. Calculate the value of x in each of the following figures

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  11. Calculate the value of x in each of the following figures

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  12. In the fig. ALbotBC and AM is the bisector of angleA. Find the measure...

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  13. In triangleABC, AD bisects angleA and angleC>angleB prove that angleAD...

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  14. In triangle ABC, BDbotAC and CEbotAB. If BD and CE intersect at O, pro...

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  15. If two parallel lines are intersected by a a transversal, then interio...

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  16. Prove that the angle between internal bisector of one base angle and t...

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  17. A triangle ABC is right angled at A. AM is drawn perpendicular to BC. ...

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  18. In triangle ABC angleB=45^@, angleC=55^@ and bisector of anglesA ameet...

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  19. Two plane mirrors l and m are placed perpendicular to each other as sh...

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  20. Define complementary angles.

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