Question

Help!!!!! please!!!!!

Answer 1

250
`\pi` which is around 785 cm (C)

Explanation:

Surface area of a cylinder can be found by finding the area of the two circles.

So the diameter of the circle is 10, meaning the radius is 5. (10/2)

`2 * 5^2\pi` = 50
`\pi`

Multiply by 2 because there are two of these circles.

Now to find the "long part", we find the circumfrence of the circle (
`\pi`d or 2
`\pi`r) and multiply it by the height (15)

10
`\pi` * 15 = 150
`\pi`

add these two up and you get...

250
`\pi` which is around 785 cm. (C)