Question

The ratio of the measures of three angles of atriangle is 2:3:4. The measure of the largest is:
(a) 80 degrees (b) 60 degrees (c) 40 degrees (d) 180 degrees

Answer 1

Answer:

80degrees

Step-by-step explanation:

Let x be the common multiple.

.2x+3x+4x=180(sum of angles of triangles)

9x=180

x=20

2x=2(20)=40

3x=3(20)=60

4x=4(20)=80

Answer 2

Answer:

Answer is 80 degree

Step-by-step explanation:

let all angles 2x, 3x,4x

sum of all angles of triangle =180

2x+3x+4x=180

9x=180

x=180/9

x=20

Now,

2x=20×2=40

3x=3×20=60

4x=4×20=80