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Sophia has unsharpened pencils that are 20 centimeters long. What is the approximate surface area of a pencil?


Select The Correct Answer Sophia Has Unsharpened Pencils That Are 20 Centimeters Long What Is The Approximate Surface Area Of A Pencil class=

Sagot :

The surface area of the pencil is the amount of space it covers

The surface area of the pencil is 61 square centimeters

How to determine the surface area?

The given parameters are:

H = 20 cm

L = 0.5 cm

The surface area (SA) is then calculated as:

SA = 6LH + 3[tex]\sqrt 3[/tex]L^2

This gives

SA = 6 * 0.5 * 20 + 3[tex]\sqrt 3[/tex] * 0.5^2

Evaluate the sum

SA = 61

Hence, the surface area of the pencil is 61 square centimeters

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