find the volume of the cylinder shown to

Question

Find the volume of the cylinder shown to
the nearest thousandths having a height of 2 ft and radius of 0.25 ft

 

Find the surface area of the above cylinder to the nearest hundredths.

 

 

 

Answer 1

volume = base area x height

  where, base area = pi* radius^2 = pi * 0.25^2 = .0625* pi ,  or about  0.196, and 0.20 to the nearest                hundredths 

  and  height = 2,

therefore, Volume =  0.196*2,  or about 0.392 and 0.39 cubic ft to the nearest hundredths

 

Surface area = base area + top area + mid rectangular area

  base area = top area = 0.196

  mid rectangular area = circumference x height 

                                = 2*pi* radius = 2*pi*0.25 = 0.5*pi = 0.157

  Adding all,  0.196+0.196+0.157= 0.549, or 0.55 sq ft to the nearest hundredths