Angle Sum Property of a Triangle


 
 
Concept Explanation
 

Angle Sum Property of a Triangle

Angle Sum Property of a Triangle:

The angle sum property of a triangle states that the angles of a triangle always add up to 180°. Every triangle has three angles and whether it is an acute, obtuse, or right triangle, the angles sum to 180°. For example, in triangle ABC, angle A + angle B + angle C = 180°.

 

Sample Questions
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Question : 1

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

Right Option : A
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Question : 2

If one angle of a triangle is equal to the sum of the other two angles, then the triangle is ___________________ .

Right Option : D
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Question : 3

If the bisectors of the acute angles of a right triangle meet at O,Then the angle at O between the two bisectors is

Right Option : C
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