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2 years ago

What is the surface area of this cylinder ?

Mathematics

1 answer:

Lana71 [14]2 years ago

8 0

Answer:

87.92 mm²

Step-by-step explanation:

Given:

Radius of circular base: 2 millimeters
Height of cylinder: 5 millimeters

It should be noted:

Surface area of cylinder: 2πrh + 2πr² (R = Radius; H = Height)

When the measures are substituted, we get the following expression:

⇒ 2π(2)(5) + 2π(2)²

Multiply the constants and substitute π as 3.14.

⇒ 20π + 2π(4)
⇒ 20π + 8π
⇒ 20(3.14) + 8(3.14)

Finally, simplify the expression to determine the surface area.

⇒ 20(3.14) + 8(3.14)
⇒ 62.8 + 25.12
⇒ 87.92 mm²

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Step-by-step explanation:

Q - 12

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The diagonal length of the elevator = e = 1.2 meters

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