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Mathematics 7 Online
OpenStudy (anonymous):

http://prntscr.com/6n4wvu

OpenStudy (anonymous):

3 rectangle 2 triangles, so what's the surface area?

OpenStudy (anonymous):

i dont know i know that SA=L*W*H

OpenStudy (anonymous):

the base of it is 9*6= the sides 9*5*2 so you should know the answer without the tringles

OpenStudy (anonymous):

You need to find the areas of all the 2d shapes and then add them up.

OpenStudy (anonymous):

9*6=54 and 9*5=45*2=90

OpenStudy (anonymous):

i multiply it all then add?

OpenStudy (anonymous):

Find the areas as you would normally for a shape, and once you have all of them, add it.

OpenStudy (anonymous):

i got 1080

OpenStudy (anonymous):

|dw:1427692525612:dw| think of it as such

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