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Mathematics 9 Online
OpenStudy (hayleymeyer):

http://media.education2020.com/evresources/878-12-03-00-00-sur_files/i0100000.jpg

OpenStudy (hayleymeyer):

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OpenStudy (hayleymeyer):

a. 850 mm2 c. 34 mm2 b. 425 mm2 d. 160 mm3

OpenStudy (hayleymeyer):

The figure is made up of congruent cubes, each measuring 5 mm. find the surface area!

OpenStudy (hayleymeyer):

@danicap :)

geerky42 (geerky42):

One way to solve is to "count" how many squares there are on this figure.

geerky42 (geerky42):

Then multiply that by area of one square

OpenStudy (hayleymeyer):

I got 40? im pretty sure im wrong though.

OpenStudy (anonymous):

5(4)(42)

OpenStudy (hayleymeyer):

how did you get that? :o

OpenStudy (anonymous):

There's 42 squares that i counted

OpenStudy (hayleymeyer):

im so stuuppid Dx

OpenStudy (anonymous):

lol, no you're not. Geometry is hard :P

OpenStudy (hayleymeyer):

thank you for helping me, I appreciate it! still wanna halp me?

OpenStudy (anonymous):

sure, i can try

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