Question

can you check this please? thank you! (Posted below, please excuse the writing xD )

Answer 1

Ok, did you do:

the formula?

I will show you in a moment :

Answer 2

A= Pi, (3.14) x R^2

+

A = (3.14 x D) x H

Answer 3

Remember,

two radi's make a Diameter, so,

So, lets check the answer!

Answer 4

What is 15^2?

Answer 5

225

Answer 6

Right, now

225 x 3.14

Answer 7

706.5

Answer 8

So, we have part I.

Answer 9

So, what is the diameter? 225.

Answer 10

225 x 3.14?

Answer 11

225*3.14 = 706.5

Answer 12

706.5. Now,


706.5 x the height, 19

Answer 13

Ok what I did to find the surface is

Area of circle = (pi * 15 ^2) x 2 because of the top and bottom

lateral area (around cylinder) perimeter x height or in this case

2* 15 * pi x 19 = 1789

1789 + 1413 = 3202 ?

Answer 14

This is the Surface Area or the Lateral surface area.

Answer 15

I have to find the surface area, so I added the lateral (around) to the top and bottom areas

Answer 16

Yes, I left that out.

So, x 2 by 706.5

Answer 17

1413.

Answer 18

13423.5

Let me round it.

13424..

13424 + 1413 =

Answer 19

your number seems much to big to be the surface area?

Answer 20

Exactly, I am checking what we've done wrong..

What I am asking is what kind do you need.

Answer 21

So, what did you do? I am interested in your answer

Answer 22

(Did you do the formula, if so which)

Answer 23

i typed it above :) I combined formulas

Answer 24

I see! How'd you get 1789?

Answer 25

(pi * 15 ^2) x 2?

Answer 26

I believe you ARE correct, I just checked, and I multiplied two more than once in my product.

Answer 27

ohhh okay, because you had me lost on the math you were doing, it did not make much sense fwew :P

Answer 28

Lol,

I've done the incorrect analyze while I was talking to you, I was looking at the volume page also, XD.

Answer 29

ohhh haha ok xD thank you anyways!! :D

Answer 30

Just to make sure

I am a bit iffy when it comes to progression in formula's, my trusted mentor, 'ShadowLedgendX' would check over it.

Answer 31

For the surface area of a cylinder, you're basically just looking for the surface area of two circles, and one rectangle

Answer 32

Area of a Circle = pi(r)^2

Answer 33

Area of the Rectangle in this case = h(pi)(r)

Answer 34

\[Area = 2\pi r^2 + h \pi r\]

Answer 35

instead or radius for the rectangle, it should be diameter, let me change that