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Mathematics 9 Online
OpenStudy (nightmarenight):

Check my answers? 3 questions attached below! Will fan and medal.

OpenStudy (nightmarenight):

OpenStudy (nightmarenight):

@perl

rishavraj (rishavraj):

@NightmareNight how did u get 76?????

OpenStudy (nightmarenight):

On number 3?

OpenStudy (nightmarenight):

I think i meant to put 38. On 3

rishavraj (rishavraj):

@NightmareNight sorry man mine mistake.....all answers r correct.....:))

OpenStudy (perl):

does the surface area include the bottom?

OpenStudy (nightmarenight):

I don't think so @perl

OpenStudy (nightmarenight):

Not 100% sure

OpenStudy (nightmarenight):

I changed my answer to 38, is that right? @perl

rishavraj (rishavraj):

the surface area is the total area of all the faces of a 3D shape.

OpenStudy (perl):

surface area of a rectangular solid = 2 * ( L*W + W*H + L*H)

OpenStudy (nightmarenight):

So 76 was right? @perl

OpenStudy (perl):

yes

OpenStudy (perl):

the volume of that figure i got 40 cm^3 surface area i got 76 cm^2

OpenStudy (nightmarenight):

Thank you!! @perl

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