Question

answer all the questions ​

Answer 1

Answer:

Part A

1. ratio = 2:3:4

let ratio = 2x:3x:4x

sum = 180° (angle sum property)

2x+3x+4x = 180°

9x=180°

x=180°/9

x=20°

angle 1= 20*2=40°

angle 2= 20*3=60°

angle 3= 20*4=80°

2.