Question

From information find out measure of angle ABF​

Answer 1

∠ ABF = 120°

Explanation:

HCI is a straight line , so

3x + 2x + 4x = 180 , that is

9x = 180 ( divide both sides by 9 )

x = 20

∠ ABF and ∠ BCI are corresponding angles and are congruent , so

∠ ABF = 2x + 4x = 6x = 6(20) = 120°

Answer 2

if 9x = 180 degree

Explanation:

one x equal to 20 degree

and if 3x= 60 degree the ? = 120 degree