1.

The angles of a triangle are in the ratio of 3 : 4 : 8. The triangle is1. obtuse angled2. right angled3. acute angled4. isosceles

Answer» Correct Answer - Option 1 : obtuse angled

Given :

Ratio of angles of triangle is 3 : 4 : 8  

Concept used :

Sum of all angles of a triangle is 180° 

Calculations :

Let the values of angles be 3x, 4x and 8x

3x + 4x + 8x = 180° 

15x = 180° 

⇒ x = 12° 

3x = 36° , 4x = 48° and 8x = 96° 

One of the angles is more than 90° 

∴ The triangle will be obtuse 



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