Question

Instructions: Find the surface area of each figure. Round your answers to the nearest tenth, if necessary.

Surface Area:
4 ft.
5 ft.
Surface area of cyclinders

I used the formula that it gave me but I got it wrong and I need just some help on how to set it up please.

Answer 1

The answer 628
let me know if I helped you, Thank you!

Answer 2

628

Explanation:

1. Formula = $2 x pi x r^2$ x height

2. Plug in numbers = 2 x 3.14 x $5^2$ x 4

3. Do the math = 2 x 3.14 x 25 x 4 = 628

Why? 25 x 4 = 100 x 3.14 = 314 x 2 = 628.

We can multiply out of order because of the communicative property of multiplication.

Answer: $628 ft^2$