The formula to calculate the surface area of a cylinder is:
Surface Area = 2πr(h + r)
Given:
Radius (r) = 4 cm
Height (h) = 2 cm
Using the approximation of π = 3.14, we can now calculate the surface area:
Surface Area = 2 * 3.14 * 4 * (2 + 4) (Simplify)
= 2 * 3.14 * 4 * 6
= 150.72 cm²
Therefore, the surface area of the cylinder is approximately 150.72 cm².
Find the surface area of a cylinder with a radius of 4 cm and a height of 2 cm. Use the approximation of 3.14 for pi.(1 point)
9 answers
Find the surface area of a cylinder with a diameter of 12 inches and height of 10 inches. Use the approximation of 3.14 for pi.(1 point)
To find the surface area of a cylinder, you need to calculate the sum of the areas of the two bases and the lateral surface area.
Given:
Diameter (d) = 12 inches
Radius (r) = d/2 = 12/2 = 6 inches
Height (h) = 10 inches
Pi (π) ≈ 3.14
The formula for the surface area of a cylinder is:
Surface Area = 2πr^2 + 2πrh
Calculating the two base areas:
Base Area = πr^2
= 3.14 * (6 inches)^2
= 3.14 * 36 square inches
≈ 113.04 square inches
Calculating the lateral surface area:
Lateral Surface Area = 2πrh
= 2 * 3.14 * 6 inches * 10 inches
= 376.8 square inches
Calculating the total surface area:
Surface Area = 2πr^2 + 2πrh
= 2(113.04 square inches) + 376.8 square inches
= 226.08 square inches + 376.8 square inches
= 602.88 square inches
Therefore, the surface area of the cylinder is approximately 602.88 square inches.
Given:
Diameter (d) = 12 inches
Radius (r) = d/2 = 12/2 = 6 inches
Height (h) = 10 inches
Pi (π) ≈ 3.14
The formula for the surface area of a cylinder is:
Surface Area = 2πr^2 + 2πrh
Calculating the two base areas:
Base Area = πr^2
= 3.14 * (6 inches)^2
= 3.14 * 36 square inches
≈ 113.04 square inches
Calculating the lateral surface area:
Lateral Surface Area = 2πrh
= 2 * 3.14 * 6 inches * 10 inches
= 376.8 square inches
Calculating the total surface area:
Surface Area = 2πr^2 + 2πrh
= 2(113.04 square inches) + 376.8 square inches
= 226.08 square inches + 376.8 square inches
= 602.88 square inches
Therefore, the surface area of the cylinder is approximately 602.88 square inches.
thats rong bot
I apologize for the incorrect response. Let's recalculate the surface area.
Given:
Diameter (d) = 12 inches
Radius (r) = d/2 = 12/2 = 6 inches
Height (h) = 10 inches
Pi (π) ≈ 3.14
The formula for the surface area of a cylinder is:
Surface Area = 2πr^2 + 2πrh
Calculating the two base areas:
Base Area = πr^2
= 3.14 * (6 inches)^2
= 3.14 * 36 square inches
= 113.04 square inches
Calculating the lateral surface area:
Lateral Surface Area = 2πrh
= 2 * 3.14 * 6 inches * 10 inches
= 376.8 square inches
Calculating the total surface area:
Surface Area = 2πr^2 + 2πrh
= 2(113.04 square inches) + 376.8 square inches
= 226.08 square inches + 376.8 square inches
= 602.88 square inches
Therefore, the surface area of the cylinder is approximately 602.88 square inches.
Given:
Diameter (d) = 12 inches
Radius (r) = d/2 = 12/2 = 6 inches
Height (h) = 10 inches
Pi (π) ≈ 3.14
The formula for the surface area of a cylinder is:
Surface Area = 2πr^2 + 2πrh
Calculating the two base areas:
Base Area = πr^2
= 3.14 * (6 inches)^2
= 3.14 * 36 square inches
= 113.04 square inches
Calculating the lateral surface area:
Lateral Surface Area = 2πrh
= 2 * 3.14 * 6 inches * 10 inches
= 376.8 square inches
Calculating the total surface area:
Surface Area = 2πr^2 + 2πrh
= 2(113.04 square inches) + 376.8 square inches
= 226.08 square inches + 376.8 square inches
= 602.88 square inches
Therefore, the surface area of the cylinder is approximately 602.88 square inches.
The answer to this full practice is
1.Idk sorry
2.150.72
3.602.88
4.298.3
5.753.6
1.Idk sorry
2.150.72
3.602.88
4.298.3
5.753.6
1. is 2πr^2 + 2πrrh
you added one extra r at the end but still correct tho
1.2π r h+ 2π r^2
2.150.72
3.602.88
4.298.3
5.753.6
2.150.72
3.602.88
4.298.3
5.753.6