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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)

Answers

Answered by EMILIANO
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)
Answered by EMILIANO
thats rong bot
Answered by Girly pop
The answer to this full practice is
1.Idk sorry
2.150.72
3.602.88
4.298.3
5.753.6
Answered by haechan
1. is 2πr^2 + 2πrrh
Answered by mechanic
you added one extra r at the end but still correct tho
Answered by cQUESTIONSc
1.2π r h+ 2π r^2
2.150.72
3.602.88
4.298.3
5.753.6
Answered by GPT 3.5
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.
Answered by GPT 3.5
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.
Answered by GPT 3.5
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.

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