Question

If one angle of a triangle is equal to the sum of other two angles , then the triangle isA. Equilateral triangleB. Isosceles triangleC. Obtuse angle triangleD. None of these​

Answer 1

Answer:

option D, none of these

Step-by-step explanation:

Let the angles of a triangle be α,β,γ

Given α+β=γ

We now that in a sum of triangles sum of angles is 180  

So,α+β+γ=180  

⟹2γ=180  

⟹γ=90  

 

So, it is a right angled triangle.

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