Question

Could anyone help me with this question?

Answer 1

Since sum of interior angles is equal to 180°, we get

<3 + <6 = 180°

120° + <6 = 180° since <3 = 120°

<6 = 180° - 120°

<6 = 60°

You can also prove this by measuring the angle with a protector:)

Answer 2

Explanation:

Angle 6 is equal to angle 2

angle 2 and angle 3 form a straight line = 180 degrees

so angle 2 = 60 degrees

angle 6 = 60 degrees