I don't know about estimate but the answer is 7 7/8 hours
Answer:
x=14
Step-by-step explanation:
The interior angles of a regular decagon are the same and add up to 1440.
10(10x+4)=1440
Your answer for the question is = P.[-2+3]
Answer: x=120
they are intercepting so the other side is 60
60x2 is 120