To find the surface area of a cylinder, we need to find the area of the two bases (circles) and the area of the curved surface.
The area of a circle is given by the formula A = πr^2, where r is the radius.
The area of the two bases (circles) can be found by substituting the given radius (5 cm) into the formula:
A_base = π(5 cm)^2 = 3.14(25 cm^2) ≈ 78.5 cm^2
The curved surface area can be found by the formula A_curved = 2πrh, where r is the radius and h is the height.
A_curved = 2 * 3.14 * 5 cm * 15 cm ≈ 471 cm^2
Now, we can find the total surface area of the cylinder by adding the areas of the two bases and the curved surface:
Total Surface Area = A_base + A_base + A_curved = 78.5 cm^2 + 78.5 cm^2 + 471 cm^2 ≈ 628 cm^2
Therefore, the surface area of the cylinder is approximately 628 square centimeters, which is not one of the provided options.
Find the surface area of the cylinder below. Use the approximation 3.14 for pi
The height is 15 cm, the radius is 5 cm.
1. 5.33.8 square centimeters.
2. 623 square centimeters
3. 1,099 square centimeters
4. 623 centimeters
1 answer
4 answers