2.  Def: A cylinder is a circular solid with two circular bases. r h L.A. = 2πrh S.A. = 2πrh +2πr 2

3.  Def: A cone is a circular solid with one circular base. l r h L.A. = πrl S.A. = πrl + πr 2

4.  Def: A sphere is a circular solid with no base S.A. = 4πr 2

5.  Find the lateral area and surface area. Leave answers exact unless otherwise specified. 7 25

6.  Find the lateral area and surface area. Leave answers exact unless otherwise specified. 13 12

7.  Find the surface area. Leave answers exact unless otherwise specified. 8

8.  Find the surface area of the solid. Leave answers exact unless otherwise specified. 10 12

9.  Find the surface area of the solid. Leave answers exact unless otherwise specified. 3

10.  The surface area of a sphere is 36π. What is the radius of the sphere?