Correct option is B
Given:
The ratio of the angles of triangle ABC is 2:3:4.
Formula Used:
Sum of angles in a triangle = 180°
Solution:
Let the angles of triangle ABC be 2x, 3x, and 4x
Since the sum of the angles in a triangle is 180°,
2x + 3x + 4x = 180°
9x = 180°
x = 20°
Now, the angles of the triangle are:
First angle = 2x = 2 * 20 = 40°
Second angle = 3x = 3 * 20 = 60°
Third angle = 4x = 4 * 20 = 80°
Thus, the biggest angle is 80°.
