Find the surface area of a cylinder with a radius of 5 inches and a height of 10 inches. Use the approximation 3.14 for pi. (1 point)

O 471 inches
• 314 square inches
O 471 square inches
• 345.4 square inches

8 answers

The formula to find the surface area of a cylinder is given by A = 2πr(r+h), where r is the radius and h is the height.

Thus, in this case, the surface area is A = 2(3.14)(5)(5+10) = 2(3.14)(5)(15) = 471 square inches.

Therefore, the correct answer is O 471 square inches.
A can of olives has a diameter of 6 inches and a height of 4 inches. How many square inches of paper will be needed for the label on the outside of the can? Use 3.14 for pi. (1 point)
• 131.88
• 376.8
• 75.36
• 150.72
The formula to find the surface area of a cylinder is given by A = 2πr(r+h), where r is the radius and h is the height.

In this case, the radius is half of the diameter, so r = 6/2 = 3 inches. The height is 4 inches.

Thus, the surface area is A = 2(3.14)(3)(3+4) = 2(3.14)(3)(7) = 131.88 square inches.

Therefore, the correct answer is • 131.88.
A wheel of cheese has a diameter of 6 inches and a height of 2 inch. A chef is making an appetizer where the cheese will be covered with pastry. To know how much pastry is needed, the chef wants to know the surface area of the cheese wheel. What is the total surface area of the cheese wheel in square inches? Use 3.14 for pi. (1 point)
• 62.8 square inches
O 301.44 square inches
• 94.2 square inches
• 37.68 square inches
The surface area of the cheese wheel can be found by calculating the area of the top and bottom circles, as well as the lateral surface area.

The formula to find the surface area of a cylinder is given by A = 2πr(r+h), where r is the radius and h is the height.

In this case, the radius is half of the diameter, so r = 6/2 = 3 inches. The height is 2 inches.

The area of the top and bottom circles is given by A_circle = πr^2 = 3.14(3)^2 = 28.26 square inches.

The lateral surface area is given by A_lateral = 2πrh = 2(3.14)(3)(2) = 37.68 square inches.

Therefore, the total surface area is A_total = 2A_circle + A_lateral = 2(28.26) + 37.68 = 56.52 + 37.68 = 94.20 square inches.

Therefore, the correct answer is • 94.2 square inches.
A cylinder has a height of 15 feet and a radius of 4 feet. Solve for the total surface area of the cylinder. Use 3.14 for r and round to the nearest tenth. (1 point)
• 477.3 feet?
• 60 feet?
301.44 feet 2
56.52 feet?
The formula to find the surface area of a cylinder is given by A = 2πr(r+h), where r is the radius and h is the height.

In this case, the radius is 4 feet and the height is 15 feet.

Thus, the surface area is A = 2(3.14)(4)(4+15) = 2(3.14)(4)(19) = 477.36 square feet.

Rounding to the nearest tenth, the surface area is approximately 477.4 square feet.

Therefore, the correct answer is • 477.3 feet^2.
1. 471 square inches
2. 252.77 square inches
3. 25.12
4. 75.36
5. 94.2 square inches
100% correct