Answer:
A≈402.12
Step-by-step explanation:
formula: A=2πrh+2πr^2
r = 4
h = 12
A=15 and the angles are 100 degrees. Thats because 6a=10=3a=55 due to alternate angles equal the same angle. so if you algebraically solve for a, you eventually get a=15. then plug in your a value into either or given equations. (i.e.. 6(15)+10= 100
25/8 miles on 5 days. You can convert it into a mix number.