The ratio of the angles of a triangle is 2 : 3 : 4. What is the largest angle in degrees ?

The ratio of the angles of a triangle is 2 : 3 : 4. What is the largest angle in degrees ? Correct Answer 80

Let the angles be 2x, 3x and 4x respectively. Now,  2x + 3x + 4x = 180­° or,  9x = 180° or,  x = 180/9 = 20 So, the largest angle = 4x = 4 x 20 = 80°
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