Question

Angles of a triangle are in the ratio of 2:3:4. Find the biggest angle of the triangle.
(a) 48°
(b) 66
(c) 80°​

Answer 1

Step-by-step explanation:

let the ratios be 2x, 3x, 4x

sum of all angles in a triangle = 180°

2x+3x+4x=180°

9x=180°

x=180/9

x=20°

thus,

2x=2×20

=40°

3x=3×20

=60°

4x=4×20

=80°

therefore, option c is the answer as 80° is the largest angle