Question

Please answer this attachment​

Answer 1

Answer:

(a) x= 30°

(b) x= 45°

Step-by-step explanation:

(a) all angles 2x, 2x, x, 3x and 4x

2x+2x+x+3x+4x= 360° (angles at a point is 360)

12x= 360°

x = 360/12

= 30°

2x = 2*30=60

2x= 2*30=60

x = 30

3x= 3*30=90

4x= 4*30=120

(b) angles = 2x, x, x

2x+x+x = 180° ( angles in a straight line is 180°)

4x = 180°

x= 180/4

x = 45°

2x = 2*45=90

x = 45

x = 45