Find the total surface area of a cylinder of base radius 5cm and length 7cm (π = 3.14)
Question 1 Report
Find the total surface area of a cylinder of base radius 5cm and length 7cm (π = 3.14)
Answer Details
The correct answer is 377.0cm^2.
The formula for the surface area of a cylinder is given by:
2πr^2 + 2πrh
where r is the radius of the base, h is the height of the cylinder, and π (pi) is a mathematical constant approximately equal to 3.14.
In this case, r = 5cm and h = 7cm, so we can plug these values into the formula:
2π * 5^2 + 2π * 5 * 7 =
2π * 25 + 2π * 35 =
50π + 70π =
120π =
377.0cm^2 (rounded to one decimal place)
So the total surface area of the cylinder is 377.0cm^2.
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