Step-by-step explanation:
1.if a is parallel to b,the 3x+7=angle 6, by correspond angles postulate
angle 6+ 4x+5=180⁰,by linear pair
3x+7=4x+5
solving for x,you get x=2
3.angle 6=3x+7
7+6=13.
hope,it was helpful...
Answer:
1) Angle 3x + 7 and angle 6 are congruent corresponding angles. Angle 6 and angle 4x + 5 are supplementary angles. So angle 3x + 7 and angle 4x + 5 are supplementary angles.
2) 3x + 7 + 4x + 5 = 180
7x + 12 = 180
7x = 168
x = 24
3) Angle 6 measures 3(24) + 7 = 72 + 7 =
79°.