If M and N are parallel and angle 1 is 135° , what is the sum of angle 6 and angle 8?(1 point)$$
Since M and N are parallel lines, angle 1 and angle 6 are corresponding angles. Therefore, angle 6 = angle 1 = 135°.
Angle 8 is an alternate interior angle with angle 1, so angle 8 = angle 1 = 135°.
The sum of angle 6 and angle 8 is 135° + 135° = 270°.