First things first, you will have 94 + x. Place those on top of a fraction bar and on the bottom put the two numbers over 2. So you have 94 + x over 2. Then, write the symbol ‘greater than or equal to’ and on the other side place your 90. So, 90 + x over 2 is greater than or equal to 90. This is a difficult thing to write out and explain so I hope this makes sense. :)
C=2pir 20pi=2pir 20pi/2pi=2pir/2pi R=10 Height=10/2=5 Two circles surface areas is 2*pir^2 2pi10^2 2*100pi 200pi The cylindrical part is 2pirh 2pi*10*5 100pi Add 100pi+200pi=300pi
