Mathematics: If r = 8 units and x = 8 units, then what is the total surface area of the cylinder shown above?

If r = 8 units and x = 8 units, then what is the

Ответ:

dogeking12

09.01.2022

The surface area of a cylinder is the area of the top and bottom circle and the side of the cylinder, which is really a rectangle with the circumference of the circle for the length and x for the width.
So the formula is $2 \pi rh+2 \pi r^2$
Plug in r and x into the equation;
$2* \pi *8*8 +2* \pi *8^{2}$
$128 \pi +128 \pi 
$
$256 \pi$
which is about 804.25 square units since it is an area.
Hope this helps.

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Ответ:

kaylaalvarado2018

30.05.2020

Mathematics

The answer would be A

Step-by-step explanation:

If you add the positive numbers in answer a you get the sum of 18. Then add the negative numbers in answer A getting the answer 18. 18-18 equals zero

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If r = 8 units and x = 8 units, then what is the total surface area of the cylinder shown above?

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