I really need help on these questions :( sorry If you can't read my handwriting but it says

If m<=42 what must the measure of <7 be in order to prove a//b?

Find the value of x for which d//m.

Justify your answer.

I really need help on these questions sorry If you cant read my handwriting but it says If mlt42 what must the measure of lt7 be in order to prove ab Find the v class=
I really need help on these questions sorry If you cant read my handwriting but it says If mlt42 what must the measure of lt7 be in order to prove ab Find the v class=

Respuesta :

Answer:

138 degrees

Step-by-step explanation:

I'm assuming you meant measurement of angle 1 = 42 degrees.

If d//m, then angles 1,4,5, and 8 all have to have the same angle measurement. Likewise, angles 2,3,6, and 7 all have to have the same angle measurement.

So, because we know the angle measurement of angle 1, we can use that to calculate angle 2. Because angle 1 + angle 2 = 180 degrees, we can just do 180 - angle 1 to calculate the measurement of angle 2, which would be 138 degrees. Because angle 2 and angle 7 have to be the same measurement in order to have d//m, angle 7 must be 138 degrees.