Lines m and n are parallel. they are cut by transversal l. what other angles is equal to 100 degrees

Angles 4, 5 and 8 are equal to 100 degrees.

Step-by-step explanation:

We have been given two parallel lines m and n that are cut by transversal l.

We know that when two parallel lines are cut by a transversal, then alternate interior angles, corresponding angles and alternate exterior angles formed are equal.

We can see that angle 4 and 100 degree angles are vertical angles, therefore, measure of angle 4 is equal to 100 degrees.

Angle 4 and angle 5 are alternate interior angles, therefore, measure of angle 5 is also 100 degrees.

Angle 8 and 100 degrees angle are alternate exterior angles, therefore, measure of angle 8 is also 100 degrees.

hi,

i'm 75% sure the answer is 1,1 to both lines.

have a great day

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.