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Mathematics 14 Online
OpenStudy (anonymous):

HOW DO YOU FIND SURFACE AREA ?? ASAP PLEASEE

OpenStudy (kainui):

LOOK AT IT QUICKLY AND MULTIPLY THE LENGTHS AND WIDTHS OF EACH FACE.

OpenStudy (akashdeepdeb):

Surface area of what? Just find the area swept by the body itself!

OpenStudy (anonymous):

Surface area is the total area of the faces and curved surface of a solid figure :)

OpenStudy (anonymous):

How you find the surface area, depends on what you want to find the surface area of. There is different formulas.

OpenStudy (anonymous):

cylinder with diameter 2 yards and height 5 yards

OpenStudy (anonymous):

2 pi r ^2 + 2 pi r h

OpenStudy (anonymous):

Surface Area = Areas of top and bottom +Area of the side Surface Area = 2(Area of top) + (perimeter of top)* height Surface Area = 2(pi r 2) + (2 pi r)* h

OpenStudy (akashdeepdeb):

A cylinder's TSA is its curved surface area + the area of the bottom and the top. Or2*pi*r(r+h) Put the values in! :)

OpenStudy (anonymous):

UGH IM NOT GETTING THIS

OpenStudy (anonymous):

;(

OpenStudy (anonymous):

What part do you not understand?

OpenStudy (anonymous):

HOW TO GET THE AWNSER LIKE IM JUST NOT GETTING IT?

OpenStudy (anonymous):

Do you understand how to use the formula?

OpenStudy (anonymous):

N0

OpenStudy (akashdeepdeb):

|dw:1376916588614:dw| Now what is the area og the top and the bottom? The area of a circle right? So It should be 2*pi*r*r Which in your case would be 2*pi And what is the Curved Surface area of a Cylinder? it is 2*pi*r*h In your case 2*pi*1*5 10*pi NOW TOTAL SURFACE AREA SHOULD BE BOTH 'ADDED' NOW JUST ADD THEM SO THE TSA WOULD BE 12*pi!! :D Understood? :)

OpenStudy (anonymous):

IM SO DUMB I GET IT NOW THANK YOU SO MUCH CAN U HELP ME WITH SOMEMORE?

OpenStudy (akashdeepdeb):

You are not dumb! :) Yeah sure! But TRY them yourself first! :)

OpenStudy (anonymous):

cube with side length of 3 yards

OpenStudy (anonymous):

IM LOOKING FOR SURFACE AREA

OpenStudy (kainui):

Jessica press the caps lock button a second time so that it's not on. It's annoying.

OpenStudy (anonymous):

ijust relized lol sorry

OpenStudy (kainui):

No problem, much better! =D

OpenStudy (akashdeepdeb):

|dw:1376917082330:dw| Surface area of a cube is 6*(side)^2 [Because we take the areas of all the squares] So here the TSA should be = 6*9 = 54 yard^2!! Getting me? :D

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