The surface area of a cylinder can be found using the formula:
Surface Area = 2πr^2 + 2πrh
Given that the radius (r) is 3 inches and the height (h) is 4.5 inches, we can substitute these values into the formula and calculate the surface area.
Surface Area = 2π(3^2) + 2π(3)(4.5)
Surface Area = 2π(9) + 2π(3)(4.5)
Surface Area = 18π + 27π
Surface Area = 45π
Now, we can use the approximation of pi as 3.14 and round our answer to the nearest inch.
Surface Area ≈ 45(3.14)
Surface Area ≈ 141.3
Rounding to the nearest inch, we get:
Surface Area ≈ 141 inches^2
Therefore, the correct answer is 141 in.2
A can of beans has a radius of 3 inches and a height of 4.5 inches. How many square inches of paper will be needed for the label on the outside of the can? Use 3.14 for pi and round your answer to the nearest inch.(1 point)
Responses
85 in.2
85 in.2
80 in.2
80 in.2
24 in.2
24 in.2
42 in.2
42 in.2
1 answer
1 answer