Question

Find the size of unknown angles​

Answer 1

Answer:

Sum of all angles on a straight line is 180 degree

Step-by-step explanation:

so

$2x + 3x + x = 180 \\ 6x = 180 \\ x = \frac{180}{6} \\ x = 30$

if x = 30

so 2x=60

and 3x=90