To find the surface area of a cylinder, we need to find the sum of the areas of the two bases and the curved surface area.
The formula for the surface area of a cylinder is:
SA = 2πr² + 2πrh
where r is the radius of the cylinder's base and h is the height of the cylinder.
Using the approximation of 3.14 for pi, we can calculate the surface area.
Let's say the radius of the cylinder is 4 units and the height is 5 units.
First, let's calculate the areas of the two bases:
Base Area = πr² = 3.14 * 4² = 3.14 * 16 = 50.24 square units
Next, let's calculate the curved surface area:
Curved Surface Area = 2πrh = 2 * 3.14 * 4 * 5 = 125.6 square units
Now, let's find the total surface area:
SA = 2πr² + 2πrh = 2 * 3.14 * 16 + 125.6 = 32.96 + 125.6 = 158.56 square units
Therefore, the surface area of the cylinder is approximately 158.56 square units.
Find the surface area of the cylinder. Use the approximation of 3.14 for pi.
(1 point)
Responses
32.97
32.97
25.12
25.12
62.8
62.8
75.36
75.36
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1 answer