+23254 The total surface area of a cylinder can be found with this equation: TSA = 2·π·r·h + 2·π·r²
Changing 30 inches into feet: 30 inches ÷ 12 inches/foot = 2.5 feet.
Since you didn't specify the 30 inches to be a radius or a diameter, I'll take it to be a diameter.
Changing a diameter of 2.5 feet into a radius: 2.5 feet ÷ 2 = 1.25 feet
TSA = 2·π·1.25·30 + 2·π·1.25² = 245.4 square feet
If you don't want to include the area of the two ends, don't include the 2·π·r² term.
+23254 The total surface area of a cylinder can be found with this equation: TSA = 2·π·r·h + 2·π·r²
Changing 30 inches into feet: 30 inches ÷ 12 inches/foot = 2.5 feet.
Since you didn't specify the 30 inches to be a radius or a diameter, I'll take it to be a diameter.
Changing a diameter of 2.5 feet into a radius: 2.5 feet ÷ 2 = 1.25 feet
TSA = 2·π·1.25·30 + 2·π·1.25² = 245.4 square feet
If you don't want to include the area of the two ends, don't include the 2·π·r² term.
