I did out all my work but it got deleted. Hope you don't mind just answers. 5) 10 6) 32 7) 64 pi 8) A=64 pi C=16 pi 9) A=110.25 pi C=21 pi 10) A=1024/pi C=64 11) L=4sqrt(5) or about 9 midpoint is (1,4) 12) L=sqrt(37) or about 6 midpoint is (-1,-3.5) Sorry I couldn't show work, hope this helps :)
