Step-by-step explanation:
volume of cylinder formula pi*r²*h
radius of 9cm is 4.5 as 9/2
so 4.5²*15 is 303.75cm
303.75*pi is 303.75picm³
Answer: 70 mph
Step-by-step explanation:
If one angle is d° then it's supplement is
(180-d)°
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