Geometry help pl0x

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thread starter poopBLAH Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

WELL! i need some math help on this question. i tried it and my answer were way off so yes i need help! Well here it is.. Find the surface area for this cylinder. Use 3.14 as pi. i cant draw the cylinder but i can tell u the info. The diameter of the top of cylinder is 6mm and the height of it is 30mm. thanks for helping! and yes i got the answer THANKS GUYS SO LET THIS THREAD DIEEE

XcoldshadowX 09/11/09 + PM | QUOTE | PERMALINK | REPORT

Try breaking apart the cylinder into its 2 dimensional components.

poopBLAH Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

XcoldshadowX : Try breaking apart the cylinder into its 2 dimensional components. umm yes im dumb for asking this.. how do u do that? first day of geometry for me ;(

CircaSurvive Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

2 x (r^2 x pi) + (2 x r x pi x height) In others words: 2 times the surface of a circle (top and bottom of the cilinder + the surface of the coat (base x height); where the base is equal to the circle's circumference.

Great 09/11/09 + PM | QUOTE | PERMALINK | REPORT

First, find the area of the circle.

TeeHeexD 09/11/09 + PM | QUOTE | PERMALINK | REPORT

first u find the area of the two faces then think of the middle part as like an unfolding rectangle o-o hope this helps

XcoldshadowX Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

A cube is made up of 6 squares. A square pyramid is made up of a square and 4 triangles. nvm, I guess CircaSurvive gave you your fish.

poopBLAH Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

CircaSurvive : 2 x (r^2 x pi) + (2 x r x pi x height) i understand the 2nd part of it but not the first partt i dont know what ^ is thanks guys! this really helped

NSDARKNESSX 09/11/09 + PM | QUOTE | PERMALINK | REPORT

Are you in Grade 8? Because I learned this 1 month into grade 8...

ScaniaSin 09/11/09 + PM | QUOTE | PERMALINK | REPORT

^2 means to the 2nd power. Or, squared.

TeeHeexD Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

the 2nd part = the circumfrence of one of ur faces x the height of ur cylinder nvm i thought udk the second part

Hjytmow10 09/11/09 + PM | QUOTE | PERMALINK | REPORT

Eh, Im in 7th grade an I can figure that out, easy

poopBLAH Sep 11 2009 + PM | QUOTE | PERMALINK | REPORT

NSDARKNESSX : Are you in Grade 8? Because I learned this 1 month into grade 8... yes i am and are u supposed to find the circumference of BOTH the circles on top and bottom or just one @ above u must be smart!

blondguy6464 09/11/09 + PM | QUOTE | PERMALINK | REPORT

How about dont ask basilmarket for math homewrok help... nuf said. Also, most basilers are probably going to be asses anyways and tell you somthing wrong.

CircaSurvive 09/11/09 + PM | QUOTE | PERMALINK | REPORT

poopBLAH : i understand the 2nd part of it but not the first partt i dont know what ^ is thanks guys! this really helped ^ is the same is ... x ... in this case: radius x radius or 3mm x 3mm = 9mm