PLEASE HELP CORRECT AND 1ST ANSWER IS BRAINLIEST

Answer:
m<A = 40 deg
m<B = 60 deg
m<C = 80 deg
Step-by-step explanation:
2x + 3x + 4x = 180
9x = 180
x = 20
m<A = 2x = 2(20) = 40
m<B = 3x = 3(20) = 60
m<C = 4x = 4(20) = 80
m<A = 40 deg
m<B = 60 deg
m<C = 80 deg
Answer:
A: 40°, B: 60°, C: 80°
Step-by-step explanation:
The sum of ratio units is 9. The sum of angles is 180°, so each ratio unit stands for 180°/9 = 20°.
A = 2×20° = 40°
B = 3×20° = 60°
C = 4×20° = 80°