picture of question in comments, surface area of cylinder

Question

flygirlmandi · Answer

@ILovePuppiesLol

snowsurf · Answer

First what shapes do you recognize fro ma cylinder that will help you calculate its area?

flygirlmandi · Answer

@snowsurf  hi, sorry i got distracted...and circles, i see circles, dont i have to find the area of the circle first, but i dont know how to get the surface area of a circle

snowsurf · Answer

Area of a circle is $$A = \pi r^2$$

563blackghost · Answer

Heyo! It seems as though you are in connexus...in which i am as well ^^.....

So to find the surface area of the cylinder we would have to find the radius....so we would divide the diameter by 2....

$\Huge{2 \div 2 = ?}$

flygirlmandi · Answer

1 and 1 times pi is 3.14 so the area is 3.14?

flygirlmandi · Answer

and yea im in SCCA

563blackghost · Answer

Once now that you have found the radius we would now input what we know into this equation...

$\Huge{SA=2 π r^{2} + 2 π r h}$ In which r is 1 and h is 15 and we substitute pi as 3.14....so we input...

$\Huge{SA=2(3.14)1^{2}+2(3.14)1(15)}$ 

You would simplify this to find the surface area ^^

flygirlmandi · Answer

where did you get 15?

563blackghost · Answer

In you picture we have 15cm that is the height for the cylinder....

flygirlmandi · Answer

oh, oh okay i feel dumb okay

563blackghost · Answer

its alright ^^

563blackghost · Answer

im sorry but i must go :(

flygirlmandi · Answer

*wipes tear and waves tissue frantically* okay goodbye :D

flygirlmandi · Answer

@hartnn I DONT KNOW HOW TO SIMPLIFY EQUATIONS I DID THAT LAST SEMESTER PLEASe HELP

hartnn · Answer

so you're stuck here?

$\Large {SA=2(3.14)1^{2}+2(3.14)1(15)}$

flygirlmandi · Answer

we i know pmdas but on the second part (after +) i dont know what to multiply

hartnn · Answer

15*2 = 30
3.14*30 = 94.2

flygirlmandi · Answer

why is 15 multiplyed by 2? their n comepletely different sides.

hartnn · Answer

2*3.14 = 6.28

lastly,
6.28+94.2 = ... 
is your answer.

because of cummulative property of multiplication
$a\times b \times c = a\times c \times b$

flygirlmandi · Answer

100.48

hartnn · Answer

$\huge \checkmark $

flygirlmandi · Answer

thanks you dont know how close i was to putting this (here, you get best response from me so i didnt completely waste ur time but im gonna watch friends, bye) but then you started typing so i deleted it lol XD

hartnn · Answer

lol i don't care about medals anymore.
and FRIENDS is my favorite TV series :D

flygirlmandi · Answer

mine too XD