------------------------------------------------------------------------- Formula ------------------------------------------------------------------------- Surface area = 2πr² + 2πrh
------------------------------------------------------------------------- Find Surface Area ------------------------------------------------------------------------- Total surface area = 2 x π x (13.5)² + 2 x π x (13.5) x (90) Total surface area = 364.5π + 2430π Total surface area = 2794.5π Total surface area = 8774.73 unit² (Take π as 3.14)
