True or False, please give me an answer asap, and a reasoning would also be great

Answer:
False
Reasoning:
- It's an acute angle, 140 is obtuse
- Angles 6 and 8 are 140 degrees, so 5 can't be
Answer:
False
Step-by-step explanation:
∠ 8=140° (alt. ext.∠)
∠5=180-140 (∠ on a str. line)
=40
≠140