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# The total surface area in square meters is:?

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The total surface area in square meters is:

I have no idea how to figure this out, does anyone know? Please simplify your equation or whatever, as i do not know what to enter into my calculator if you say things like ^ 4/3 and etc thanks!

### 1 Answer

- Anonymous1 decade agoFavorite Answer
Let:

r be the radius,

s be the slant height.

The area of the base is:

pi r^2.

The area of the remaining part is:

pi r sqrt(r^2 + h^2).

Adding those together gives:

pi r (r + sqrt(r^2 + h^2).

pi * 6 * (6 + sqrt(6^2 + 8^2))

= pi * 6 * (6 + sqrt(36 + 64))

= pi * 6 * (6 + sqrt(100))

= pi * 6 * (6 + 10)

= pi * 6 * 16

= pi * 96

= 301.6.

You evaluate expressions such as a^b using the [x^y] key:

a [x^y] b.

You will probably have keys labelled with the Greek letter [pi], [x^2] for doing the square, and with a square root sign for doing the square root.