He should use yards or meters
Third angle = 180 - (44 + 72) = 180 - 116 = 64 degrees answer
C=2πr=2·π·13≈81.68141
C=81.68
Communitive Property is the correct one
We are given
The largest telescope in the world is powerful enough to identify a penny that is 5 miles away
it means that
distance =5 miles
we can change it into yards
we know that
1 mile=1760 yards

we can replace 1 mile


So, distance in yards is 8800 yards..........Answer